10 Common Furnace Problems & Repairs

After the cool fall and winter weather arrive, hundreds of people call Green Apple Mechanical experts because of a problem with their heating system. Whether it’s a commercial or residential setting, the same basic problems plague furnaces. By knowing what the most common furnace problems are, you can take proactive measures to prevent them.

  1. Lack of maintenance: You fail to schedule annual furnace maintenance and inspections that could prevent unexpected problems and breakdowns. These routine inspections can help the appliance run more efficiently and reliably.
  2. Dirty filters: Dirty or clogged air filters reduce airflow, making a furnace work harder to circulate. In some cases, a clogged filter may damage the limit switch, which controls the fan.
  3. Wear and tear: Normal wear and tear can cause airflow problems, heat control-related problems or even overheating.
  4. Electric ignition or pilot control problems: A faulty ignition or pilot could make it difficult to heat a home or commercial space. Thermocouple problems, drafts or clogs in the appliance may result in an unlit pilot light.
  5. Malfunctioning thermostat: A faulty thermostat can lead to problems with the fan or comfort levels.
  6. The furnace doesn’t heat at all: A furnace that doesn’t perform its main task may have problems with the thermostat setting, power, gas or the pilot light.
  7. The furnace doesn’t heat enough: In addition to a clogged filter, a furnace may not produce enough heat if it’s the wrong size for the space.
  8. Frequent cycling: Cycling between the “On” and “Off” modes may indicate a clogged filter, improper airflow or a bad thermostat setting.
  9. The blower continuously runs: Blower issues may indicate a problem with the limit switch, which a professional may need to replace.
  10. The furnace is too noisy: Rumbling, squeaking and rattles aren’t normal. The sounds may indicate a mechanical problem, airflow reductions or a clogged burner.

Furnace Tips and Advice for Repairs

  • Change the air filters: Dirty air filters lead to a multitude of furnace problems. Clean or replace the filter one a month, according to the manufacturer’s directions. A furnace repair professional can show you how to do this.
  • Check the thermostat: If it seems as if your furnace doesn’t produce any heat, check the battery level in the thermostat. In some models, simply replacing the battery may do the trick.

When the blower fan doesn’t turn off or the furnace cycles too frequently, check the thermostat settings. The fan setting should be on “Auto.” In the “On,” “Low,” “Medium” or “High” modes, the fan will run continuously.
If the furnace doesn’t seem to produce enough heat, check the thermostat’s setting to make sure it’s on “Heat” mode. Then check the temperature to make sure it’s set to one that’s higher than the current room temperature.
If nothing seems to work, you may need to purchase a new. Make sure the new thermostat matches your furnace in regards to capability and capacity, or you may encounter future problems.

  • Check the circuit breaker and power supply: If the furnace stops working or the thermostat’s screen is blank, check if the circuit breaker tripped or blew a fuse. Also, make sure the power cord is plugged into an outlet.
  • Reduce drafts: If a draft causes problems with the pilot light, you may need to close the windows or doors in the room.
  • Maintenance: Every year, at the end of the summer or beginning of fall, hire a furnace repair specialist to inspect and maintain the furnace. The professional will get the unit ready for the upcoming cool weather and fix problems that could cause breakdowns or expensive repairs during busy winter months.
  • Furnace installation: If you need to replace your furnace, use a furnace contractor’s expertise to determine the right type and size for your home or commercial space.
  • Ignition control or pilot light problems: As problems may result from clogged components or faulty electrical components, leave ignition issues to the experts.
  • Mechanical issues: Unless you received training to repair furnaces, let professionals handle problems related to mechanical wear and tear. Otherwise, you may void the warranty on the appliance or accidentally cause a larger problem.
  • Natural gas or propane problems: When you suspect problems with the gas feed or valve because of a malfunction with the gas pressure regulator, call a professional for help.

Tasks to Leave to a Furnace Repair Expert

When troubleshooting your appliance doesn’t solve your furnace issues, never hesitate to contact a trained HVAC contractor. Any furnace, regardless of its age, may pose combustion- or gas-related safety hazards, so it’s always a good idea to have an expert examine the unit and suggest the best course of action. Always call your friends at Green Apple Mechanical NJ for all your service needs at 888-611-7191

Repair Your Furnace to Keep Warm All Winter

All furnaces are not created equal. Some will sputter through the cold winter season and put out just enough heat to keep you from freezing to death, while others keep you plenty toasty, but at a utility cost that breaks the family budget! If you have an antiquated furnace, it just may be a good idea to have a professional take a look at it to see if some repairs could help. Often a furnace repair or even a replacement can actually pay for itself with the savings on your heating bill.
The best time to have your furnace checked out is in the summer or early autumn – in other words, before you actually need it. The reason for this is that many heating companies will offer discounts during that time. The other reason is that the last thing you want to happen is for it to fail in the middle of a winter storm when you might not be able to get someone to help you right away.
A heating professional will check out a number of things on your furnace. They will check the thermostat to make sure it is operating correctly and cycling the furnace appropriately. They will check out the venting systems to determine if there is any wear that needs to be addressed.  A serious problem is when there are wires that are frayed and thus a fire hazard, so having a professional check out and repair your furnace system could actually save your home and your life.
If your furnace is quite old or needs some costly repairs, a professional will be able to advise you on the cost to replace the furnace and how much of that you can recoup from lower heating costs from that point forward. In recent years, furnaces have been developed that are so efficient, they can cut your costs by hundreds of dollars each year.
Neglecting your furnace can be expensive and hazardous, so whether you choose to just have your furnace serviced and/or repaired to save some money or you opt to replace your furnace, the best way to get started is to call a furnace repair professional from Green Apple Mechanical NJ before it’s too late. Call toll free at 888-611-7191

4 Heating System Tips for Your Home!

Are you ready for the cold months that are rapidly approaching? Paying attention to your heating systems can help you have a smoother, warmer winter free from any heating problems. Read about 4 top tips for caring for your home’s heating system, and enjoy the peace of mind that comes with knowing things are all taken care of with help from Green Apple  Mechanical NJ.


The first thing to check out in your home is any glass, like windows and glass doors, on an exterior wall. Add plastic film to glass doors and windows to serve as an insulator. Keep curtains drawn when it is dark to keep more of your heated air in, and open your curtains and blinds during the sunniest parts of the day to let light in and generate some heat. Even small steps like these can help with that energy bill at the end of the month.


Next, check out your door situation. Update and replace your weather stripping, adjust the door thresholds making sure no light comes in around the edges, and check for cold air creeping in when your doors are closed. Paying to heat your home, and then letting that air steadily leak out into the elements is not a wise financial decision.


Finally, look for other leaks and holes, and address them as soon as possible. First, find drafts throughout your home, then seal them to keep the heated air inside your home. One easy way to check for drafts is to light a candle or stick of incense and watch for a flicker as you slowly trace the edges of suspect areas. Cold air is another obvious sign. Air can escape up chimneys, through holes in exterior walls, around the edges of electrical outlets, into your attic, and in other places you might not think of, so take the time to look for all possible costly leaks.

Scheduled Maintenance

Though these tips will help you save on a heating bill, one thing will save you more than anything else: professional maintenance. There are only a few ways to catch a potential costly problem, and the easiest and most cost effective is to schedule maintenance with Green Apple Mechanical NJ. A safety check and tune up is essential to check whether the system is running effectively, and the cost of a tune-up usually will pay for itself in savings on your utilities bill. Though checking your home for leaks is important, nothing is more important for your safety and your pocketbook than booking an appointment for your heating system today.
For more energy-saving tips, check out more of our blog posts, or call a professional from Green Apple Mechanical NJ. Call us at 888-611-7191

Why Regular Furnace Maintenance Is So Important

While the cold weather causes you to rely more on your furnace, one of the last things on your mind is how it works and why. You are content knowing it keeps you warm on  chilly days and bitter nights. But in order to avoid problems in the future, it is essential you do not neglect your furnace’s regular maintenance.
Why Maintenance Is Necessary
If you have a gas furnace, your home is being heated by the burning of natural gas or propane. The very fact that the process involves a flame and a combustible material should illustrate the importance of keeping your furnace maintained. A neglected furnace can lead to problems ranging from costly to dangerous.
Results of Neglecting Furnace Maintenance
You understand the benefits of changing the oil in your vehicle and getting it regularly serviced, right? Ensuring the components of your furnace are working correctly is of equal significance. Ignoring furnace maintenance can result in expensive, or even deadly, consequences.
Carbon Monoxide Poisoning
Carbon monoxide is a natural byproduct of incomplete combustion. It is a deadly, colorless, odorless and tasteless gas. Virtually all gas furnaces produce a small amount of carbon monoxide, which should be harmlessly vented to the outside of your home. However, dirty furnaces that have not been regularly serviced may produce greater, deadly amounts.
A tune-up by a licensed heating professional will reduce your risk of carbon monoxide poisoning by checking for the following:

  • Cracks in the combustion chamber
  • Insufficient airflow
  • Incorrect gas pressure
  • Improper ventilation
  • Malfunctioning safety devices

High Energy Bills
Even the most energy efficient furnace can become an energy drain if not properly maintained. During the summer, while it is sitting inactive, your furnace accumulates dust and dirt that can wreak havoc on its internal workings. Getting an annual furnace tune-up before the start of the heating season helps identify and prevent future problems that may result in high energy bills.
Shortened Lifespan
Replacing your furnace can be extremely costly. It is much more prudent to keep your furnace running smoothly with regular maintenance. The internal components of your furnace are complex. If even a small malfunction goes undetected for an extended period of time, it can deteriorate the lifespan of your furnace and cause other problems.
Void Manufacturer’s Warranty
Manufacturers recognize the importance of regular furnace maintenance, as well. If you do not have your furnace regularly maintained by a licensed professional, it might void the manufacturer’s warranty. That means if your furnace breaks down and it did not receive regular maintenance by a licensed professional, you may be responsible for the entire furnace repair or replacement.
Regular maintenance is imperative to a well-functioning furnace. An annual tune-up by a HVAC professional ensures efficient heating, lower energy bills and increased furnace lifespan while also reducing the risk of carbon monoxide poisoning.
Schedule your annual furnace tune-up with Green Apple Mechanical NJ to keep your furnace running safely and efficiently for many more winters. Call us at 888-611-7191

Winter Furnace Troubles

As winter sets in and the rain brings a chill, many throughout New Jersey will be reaching for their thermostat. However, if you haven’t had your heater on in a while, here are a few tips to make sure you and your family aren’t left in the cold as the temperatures fall throughout the season…
Most furnace problems will present themselves almost instantaneously the first time the furnace is fired up for the winter. With this in mind, it’s always a good idea to start the furnace at least a month before you anticipate it will be needed. This will allow you to inspect for problems and plan repairs in advance so you’re not left cold in a house with no heat.
As you turn on your furnace for the first time this season, you may notice a funny smell. This is the small of dust being burned off the heating element. It should last for only a few minutes and is no cause for alarm. Similarly, you shouldn’t be worried about the odd noises or sounds that you may hear during the beginning of the season. These might be the sound of parts heating up or the sound of hot air being forced through air ducts that haven’t been used recently.
Another thing to keep in mind is that it may take a furnace a little while to heat up the first time it is turned on for the season. The cold air has to be pushed through the ducts and the unit itself has sat dormant for some time. This is not a reason for concern, however, should your unit take longer than usual on a regular basis, it could be a sign that the system is in need of repair.
If you find that you need furnace repair, call a professional for consultations and if needed, repairs.
Symptoms to watch out for may include:

  • A funny smell that doesn’t disappear within a few minutes of starting the unit.
  • Noises that persist or sound abnormal to past experience.

Remember that your heating system is most likely using the same air ducts as the air conditioner. Any duct problems that you had when running your air conditioner will be there when you run the heating system as well.
Also, be sure to change your filters regularly. An old filter makes the HVAC system work too hard to move air, and it might burn up early as a result.
If you want to make sure your home is winter ready, contact Your friends at Green Apple Mechanical NJ. We look at both commercial and residential systems, perform routine maintenance and alleviate the concerns of our clients. We’ll look forward to hearing from you. Call us at 888-611-7191


  1. Not changing your filter. You’d be shocked at the amount of furnace problems that can be avoided by simply changing your air filter. A dirty filter causes all sorts of performance and efficiency issues with your system. 
  2. Blocking air registers. Many people mistakenly put furniture or other large objects on top or in front of supply and return registers. This can lead to airflow issues and prevent your rooms from heating properly. Make sure that all of your air registers are clear of obstructions.
  3. Skipping annual maintenance. Getting annual tune-ups is essential if you want your furnace to work properly and efficiently each winter. If you skip a tune-up, there’s a much greater chance that you’ll be calling us for a repair later on in the season when you need your furnace the most. Remember to schedule a tune-up every fall for your furnace. If you sign up for one of our maintenance clubs, we’ll send you an email or postcard when it’s time for a tune-up so that you’ll never forget!
  4. Ignoring tell-tale signs of problems. When your furnace is experiencing problems, it typically has ways of telling you. It might start making loud noises, giving off strange smells or consuming much more energy than usual. Don’t make the mistake of thinking these strange symptoms will fix themselves.
  5. Waiting too long to call for repair. Speaking of calling for a furnace repair, don’t wait too long to call  for help. Furnace problems almost always get worse with time, and the longer you wait the more expensive and damaging the problem will become.
  6. Setting the thermostat too high. Although you might be tempted to set your thermostat to 80 degrees when it’s super cold outside, this will lead to extremely high energy bills. In addition, excessively high thermostat settings can overwork your furnace and lead to performance problems. Make sure to use a temperature setting that is both efficient and comfortable.
  7. Heating an empty home. There’s no reason to heat your home to your normal temperature setting when nobody is there to enjoy it. You can save a lot of energy and reduce the stress on your furnace by setting your thermostat back about 5 degrees during the hours of the day that your family is away at school and work.
  8. Waiting too long to replace your system. We know that a furnace can be a big investment, but so is spending money on operating an old and inefficient system. The longer you wait to replace an old furnace, the more money it will cost to operate and the more likely it is that you’ll have to spend money on repairs. That money would be better spent on a new and efficient system.
  9. Choosing a system based on price alone. When you’re choosing a new furnace, it’s tempting to make your decision based on price alone. This is not a good idea, however, because you should also consider the amount of money you’ll spend on energy costs throughout the system’s lifetime. A high efficiency system will cost more upfront, but it will save you money in the long run.
  10. Choosing a contractor based on price alone. Even worse than choosing a furnace based on costs is choosing a heating contractor based on price alone. Low-priced contractors have low fees for a reason: they don’t perform quality work and they don’t have the experience and credentials it takes to install and repair a furnace the right way. When you work with a high-quality contractor like Green Apple Mechanical NJ, you will actually save money because your system will perform more efficiently and you’ll spend less money on repair calls throughout your system’s lifetime. So call your friends at Green Apple Mechanical NJ at 888-611-7191

How to Cut Your Heating Bill Without Freezing Your Tail Off

Baby, it’s cold outside.
And once the temperature drops, those utility bills start to rise—which can leave you and your bank account caught off guard.
The energy-savvy among us may already have a leg up on some power-saving moves, such as sealing the cracks around our doors or lowering our thermostats. But there’s a lot more you can do to offset that painful spike in utility costs—and it won’t involve expensive appliance upgrades or using TaskRabbit to find someone to make retrofits around the house.
We tapped experts to provide seven easy-on-the-wallet tips that will help lower your home’s energy use this winter with minimal effort from you—and you may even be able to use a few of them to save green all year-round.

1. Keep Your Hot Water Heater Cozy
Snuggling up with a good, warm blanket once the cold streak hits is likely a part of your winter ritual—and it’s also a good idea for your hot water heater, too.
Kerry Urbaniak, lead electronics instructor at the Ecotech Institute in Aurora, Colo., suggests wrapping a special insulating blanket around your water heater to minimize the amount of heat that escapes from it. “Depending on your [energy-usage] habits, you can get a 20% increase in savings by putting a wrap on it,” he says.
Luckily, water heater insulating blankets run in the $20 to $30 range, and you may be able to get discounts or rebates from your utility that help lower the cost further. Some utilities may even offer to install them for you at little to no extra cost (although you can find DIY instructions here).
Urbaniak also suggests keeping the appliance’s temperature setting at 120 degrees, which should be high enough to meet a typical household’s hot-water needs while also minimizing heat loss. “For every degree you set it above 120, you’re losing efficiency,” he adds.
And don’t shut your hot water heater off if you’re leaving town for the holidays. Rather, just turn the temperature down: “It’s costlier to let it cool down completely and then have to heat it back up again,” Urbaniak says.
2. Pay Attention to Your Pan Size
How many times have you stuck a tiny pot on a giant stove burner because it happened to be the only one without a dirty dish lying on top of it?
You may be inclined to stop that bad habit once you realize how much energy you’ve been wasting: According to the American Council for an Energy Efficient Economy, a six-inch pan placed on an eight-inch burner wastes more than 40% of the heat produced—so try to match your pot or pan size as closely as possible to the size of the heating element.
Cleanliness is also an energy-efficiency virtue when it comes to your stove: Wipe up splashes and spills on your reflector pans because they’ll better reflect heat when they shine, according to Kurt Blumenau, a spokesperson for PPL Electric Utilities, based in Allentown, Pa.
One other quick kitchen tip? Whenever possible, use a crock pot, pressure cooker or microwave to make your meal—all three use less wattage than an oven or stove. “Slow cookers and microwaves can cut as much as 50% of energy consumption, compared to other appliances like ranges or ovens,” says Lise Dirlam, a faculty instructor also with the Ecotech Institute.
3. Go Dark—With Your Curtains
You already know that window drafts are bad news for your energy bill—but did you know that the color of your curtains could also make a difference?
“Dark curtains help absorb sunlight and can take a passive solar approach,” says Urbaniak. He adds that in the winter, more light is also likely to enter your house because all the leaves that may normally block the sun’s rays have fallen to the ground.
Urbaniak uses this tip for his own home. He has louvered blinds installed on his sliding glass doors for privacy, but because they don’t provide much insulation, he covers them with dark drapes for the winter months.
4. Avoid a Deep Freeze in Your Fridge
We know, you like your water pitcher icy cold. But by keeping your refrigerator at icicle-forming temps, you’re paying for more chill than you need: According to the Department of Energy, the optimal temperature to keep your fridge is between 36 and 38 degrees, while your freezer should be between 0 and 5 degrees.
Urbaniak adds that it’s worthwhile to take a vacuum to the refrigerator’s coils to get rid of the dust and grime that can build on this oft-forgotten spot. “When the coils are clogged, heat doesn’t transfer as fast, so the motor has to work harder—which wastes energy and depletes the life of the fridge,” he says.
5. Give Your Radiators Room to Breathe
Forget feng shui. There’s another type of energy flow to keep in mind when it comes to your furnishings: “Make sure none of your furniture is blocking the radiator or the vents in the floor,” Urbaniak says. “If you interfere with the heat source, it will have to work harder.”
Also, if you’re thinking of painting a radiator to make it more aesthetically pleasing, you might want to think twice. “If there’s paint on it, it acts as an insulator—leaving it bare metal makes it more efficient,” Dirlam says.
If your heat comes through registers, you can also conserve energy by closing the ones in the rooms you’re not actively using. For example, if no one is in the bedrooms during the day, you can keep them closed until it’s time to sleep, suggests Urbaniak.
6. Create Better Light Bulb Moments
Even if you haven’t swapped out those old incandescents, you can still get more bang from your lighting buck with some careful placement: Positioning your lamps in corners will better illuminate your space because both walls will reflect the light back into the room, says Jorge Mastropietro, AIA, founder of JMA, a New York-based architecture firm with experience in low-energy passive design.
And don’t forget to dust off those bulbs—dirt can absorb as much as 50% of the light, according to Blumenau.
Ultimately, though, when your old bulbs burn out, you’ll want to upgrade to more energy-efficient versions for long-term cost savings. According to the Department of Energy, compact fluorescent lamps (CFLs) use only a quarter of the energy of incandescent bulbs and last up to 10 times longer; Light emitting diodes (LED) bulbs use about 20% to 25% of incandescents and last up to 25 times longer.
7. Be Aggressive About Passive Energy
You’re likely already familiar with the notion that electricity-sucking “vampire” appliances are adding unnecessarily to your utility bill. But realistically, you can’t unplug all the tech in your house every day—so where should you be focusing your energy (pun intended)?
Here’s a hint: “Anything that can use a remote control is always drawing power,” Dirlam says. So while you may be loathe to unplug your big-screen TV or DVR every day (lest you lose the latest episode of your favorite hit show), you could probably stand to turn off your stereo equipment, speakers or DVD player, for instance.
An easy way to stop their passive energy use is to plug those energy suckers into the same power strip and then shut the power strip off each night, suggests Dirlam. Otherwise, she says, “they’re always on, even in standby mode.”

Show Your Furnace A Little TLC

The following are recommended gas furnace maintenance procedures. The furnace owner should be urged to have a professional service contractor check the performance and operation of the furnace every year. This ensures the furnace owner of receiving the best possible performance and comfort from the equipment.
Warning: Disconnect the main electrical power to the unit before attempting any maintenance. Failure to turn off the electrical power may result in shock, causing personal injury or death.

Note that a new home may require more frequent filter attention until the dust from construction is removed.


1. Keep the air filters clean. A new home may require more frequent filter attention until dust from construction is removed.
2. How to clean filters:
Plastic filters – Vacuum clean; wash with detergent and water. Air dry thoroughly and reinstall.
Cardboard and fiberglass – Discard when dirty and replace with a like-sized similar filter.
3. If using an electronic air filter, remove the filter furnished with the furnace and follow the maintenance instructions furnished with the electronic air filter.
Important: Do not operate the furnace without filters. Dust entrained with the air can lodge in the blower wheel, in the cooling coil fins, in furnace controls, in air ducts, and at the supply registers. Any recirculated dust particles are heated and charred by contact with the heat exchanger. This residue soils ceilings, walls, drapes, carpets, and other household articles.
Important: If replacing the factory filter with an aftermarket filter, always check the furnace temperature rise to be sure the airflow is adequate.
Note: Some filters must be resized to fit certain units and applications.
For example, some units require removal of a segment of filter and frame for proper width for a bottom or side filter.


The indoor blower motor sleeve bearings and induced draft motor are prelubricated and should not require attention for an indefinite period of time. However, these are some recommendations for service technicians:
1. Motors without oiling ports – prelubricated and sealed. No further lubrication is required. In case of bearing problems, the service technician should replace the motor.
2. Motors with oiling ports add 10 to 20 drops of electric motor oil to each bearing every two years for somewhat continuous duty, or at least every five years for light duty. Do not over-oil.
Excessive lubrication can damage the motor.
3. To access oiling ports or to relubricate sealed indoor blower motor bearing, remove the blower assembly and motor.
A. Remove the wiring from the control board compartment.
B. Remove the screws from the blower housing that secure the assembly.
C. Slide the blower assembly out.
D. Loosen the set screw(s) securing the blower wheel to the motor shaft, remove any motor ground wire, and remove the screws from the motor mounting bracket legs.
E. Slide the bracket assembly from the housing.
F. Lubricate the motor bearings.
G. Reassemble using the reverse procedure outlined above.
Exercise care when sliding the blower assembly back into the unit and be sure that it is reinstalled properly.
The service technician should clean the motor periodically to prevent the possibility of overheating due to an accumulation of dust or dirt on the windings and the motor exterior. If the motor needs cleaning, clean the blower wheel also. A blower wheel loaded with dirt or dust limits airflow, eventually causing furnace damage.
As suggested earlier, clean or replace the air filters. Dirty filters restrict airflow and adversely affect blower and furnace operation.

Burner And Heating Components

The furnace should operate for many years with no malfunctions. However, the service technician should inspect the heat exchanger passages, the venting system, and the burners for correct operation, and for any signs of corrosion. The heat exchanger passages and vent system should be inspected (and cleaned if required) by the technician annually.
It is recommended that the heat exchanger be removed for inspection. However, with some products, this may not be feasible. If the heat exchanger is removed, the technician should follow these procedures.
1. Turn off furnace electrical power and set the thermostat to its lowest temperature.
2. Shut off the gas supply to the furnace either at the meter or at a manual valve in the supply piping.
3. Remove the burner door. On downflow and dedicated horizontal models, the blower door and burner door flange must also be removed.
4. Disconnect the gas supply piping from the gas valve.
5. Remove screws connecting the burner tray to the center panel.
6. Mark all wires on the gas valve for proper reconnection and disconnect the gas valve wiring.
7. Remove the burner tray and manifold assembly from the unit.
8. Remove all screws in the unit top plate. Remove the wires and tube from the pressure switch. Remove the top plate with the pressure switch attached.
9. Remove the draft inducer wiring. Remove screws connecting the draft inducer to the center panel. Take care not to damage the gasket behind the draft inducer.
10. Remove screws on heat exchanger perimeter. With hot surface ignition, remove the connecting screws along with the associated wiring.
11. With an upward and forward motion, lift the heat exchanger from the unit.
12. Clean or replace the heat exchanger, if necessary, and reinstall.
13. Reassemble the furnace in reverse order.
Warning: Holes in the vent piping or heat exchanger can allow toxic fumes to enter the home. Replace the vent pipe or heat exchanger if leaks are found. Failure to follow this warning may cause products of combustion to circulate into the living space creating potentially hazardous conditions, including carbon monoxide poisoning.
It is recommended that at the beginning of the heating season and about midway through the heating season the service technician visually inspect the main burners and pilot burner for proper flame characteristics.
Any furnace using existing high-temperature plastic vent piping must have the vent inspected annually for any cracks, pipe separation, or other deterioration of the vent material.
Important: At the beginning of the heating season, the flame sensor on electronic ignition units should be cleaned with steel wool by the technician.

Furnace Problems You might Encounter This Winter

Cold weather is meant for cuddling up in your house and staying snug and warm. Furnaces ensure that your house stays warm and is heated properly. But along with the cold winter weather, you’ll probably encounter some common furnace problems. Your furnace suddenly starts acting up and you have no idea why.
Here are seven of the most common furnace problems and how to solve them. You can opt to repair the furnace yourself if it’s a simple fix, or call in a professional furnace repair company.

  1. Your furnace is only blowing cold air or is not generating enough heat
  • Your air filter could be dirty: Change your filter every 1-3 months as per the type of filter you’re currently using.
  • Your air ducts might be leaking: If your air ducts are insufficiently insulated, it could affect the circulation of heat. It is imperative that you seal the ducts quickly.
  • The airflow could be uneven: If your air ducts were not designed properly or you picked the wrong furnace size for your home, the airflow could be uneven.
  1. Your furnace won’t turn on
  2. Your furnace only works for short periods of time
  3. Your furnace is giving out too much carbon monoxide – If your furnace is old it could have tiny cracks in the heat exchanger. This can lead to leaking of carbon monoxide. Make sure you install a carbon monoxide detector to protect your family and have you furnace examined by a professional.
  4. Your furnace is too noisy – Your furnace definitely shouldn’t be making any squeaking or rattling noises. You could have a clogged burner or some other mechanical problem.
  5. The blower continuously runs – You probably need to hire a professional to change the limit switch if you’re experiencing problems with the blower.
  6. Your furnace filter is completely clogged – This will lead to a reduction in airflow making it difficult for hot air to circulate throughout the house. The limit switch which controls the fan could also be damaged.
  • Your thermostat may be faulty: Make sure that your thermostat is set on ‘heat’ and the fan is programmed to ‘auto’ or replace the batteries.
  • You could have a tripped or blown circuit: If this happens, you may not know until you put your furnace on. Always check your circuit breaker.
  • Your pilot light could be malfunctioning: There are a number of reasons why this could occur.
  • Your thermostat could be malfunctioning: Either replace the batteries or the thermostat.
  • Perhaps your heat vent is too close to your thermostat: If the thermostat is right under a heating vent, it could be what is causing the problem.
  • Uneven heating: If your house is leaking air, it could cause your furnace to switch on again and again.
  • Your furnace could be overheating: Ensure that the filter is changed and the exhaust vents and ducts are cleared of all debris.

These common furnace problems can cause you to experience some inconvenience. But if you take the proper proactive measures, it will ensure that you stay nice and warm during the winter! If you are facing a furnace problem, it is time to call in a furnace repair professional. Contact Green Apple Mechanical NJ today and enjoy affordable and exceptional furnace repair service. Call 888- 611-7191

How To Deal With The Most Common Furnace and Heating Problems

Most people are reminded of the furnace repair service just when the fall or winter arrives. Whether it’s a residential or a commercial setting, you might have to face a lot of furnace problems in the chilly weather if you have not taken proper care of it until then. This is why you should know about the most common problems so that when these occur, you can manage those efficiently. In case you are wondering why you need to pay a lot of attention to heating repair, there are thousands of reasons. Just think of those chilly winter nights! Without a properly functioning heating or furnace system, you won’t be able to survive through the extreme winter season. Even though it’s advisable to hire an experienced contractor or a reliable local furnace service provider, who will be able to offer the necessary services, you should know a few things about tackling the most common problems. This will not only help you figure out the basic problems as soon as they occur, but also enable you to handle the situations during emergencies.
Here are five of the most common heating and furnace problems that you should know about –

  • Clogged or Dirty Filters – Clogged and dirty filters are one of the most common problems when it comes to furnace and heating repair. These reduce the airflow of the system to a great extent. This makes the circulation process more difficult for the furnace, causing additional pressure on the system. At times, a clogged filter can also damage the limit switch, affecting the working of the fan. This is why you should replace the filters of the system every month in order to improve the efficiency and expand the lifespan of the furnace
  • Problem Due to Lack of Maintenance – You must have invested thousands of your hard earned money to      buy a high-end furnace system. But if it is not maintained regularly, a lot of problems might occur like increase in the energy cost, unexpected breakdowns or poor performance. A regular inspection will help run the system reliably and efficiently.
  • Mechanical Tear and Wear – Just like any other machine, a furnace or heating system too is subject to mechanical tear and wear. These can occur at any point of time and may lead to airflow problems. If not treated timely, these can also cause overheating or heat control related problems. You must remember that the furnace is made of lots of components and if any of the parts stop functioning properly, the entire unit will stop working.
  • Pilot Control or Ignition Control Problems – Ignition and pilot control are two of the most important components of the furnace unit and if these malfunction, the furnace won’t work properly. As a result, it will make it tough to heat a commercial space or a home. Check out which type of ignition system is there in your furnace. In case it’s a hot surface ignition system, it will use some resistance heating element. On the other hand, if it’s an intermittent pilot system, it will use a high voltage electrical spark in order to ignite the gas pilot..
  • Malfunctioning Thermostat – Thermostat is the device that determines exactly when the heat needs to be produced and in what quantity. In case the thermostat is not working properly, no heat will be produced and the hot air won’t get circulated throughout your home. The intermittent heat that is responsible for ensuring comfort will also cease to exist.

These are some of the most common heating and furnace problems. You can avoid all these issues and ensure a properly functioning heating system by ensuring regular maintenance and timely repairs. So, contact a reliable HVAC contractor, get the unit checked thoroughly and ensure timely repair, if any, for its proper maintenance. You can always call your friends at Green Apple Mechanical at 888-611-7191