Common Home Heating Problems

Most Common Residential Heating Problems

Heating is an important part of any home and when it breaks down, homeowners are often left feeling frustrated, desperate and without any clear solution. Over our years of service, AJM HVAC has dealt with all kinds of heating problems large and small. In this article, we will provide a comprehensive overview of the ten most common heating problems homes experience and how to remedy them. From thermostat issues to ventilation systems and everything in between – we will cover it all. We hope that with this information, you can take proactive steps towards keeping your home’s heating system running smoothly for years to come.

Lack of Maintenance

One of the most common heating problems homes experience is lack of maintenance. Over time, parts wear out and dust accumulates in vents, which can cause the entire system to become inefficient and unreliable. To keep your system running efficiently and effectively, it is essential to have regular maintenance checkups performed by a professional. This will help identify any potential issues before they become problematic, as well as prevent future breakdowns. Regular maintenance also helps keep energy costs down as an efficient system uses less power than one that is not maintained properly.

Faulty Thermostat

Faulty thermostat issues are another common heating problem. Issues such as incorrect settings, broken wiring or a faulty component can cause the system to either overheat or not heat at all – leading to an uncomfortable living space and higher utility bills. To fix these issues, it may be as simple as replacing a battery or more involved which may require a professional.

Dirty Filters

Dirty air filters are another common issue when it comes to heating problems homes experience. Dirty air filter prevents warm air from circulating properly throughout the home, resulting in uneven temperatures and elevated energy costs. Dirty filters can also inhibit the fan by blowing the limit switch. To fix this issue replace the filter, make sure to get on a schedule and replace the filter on a monthly basis when in use.

Pilot Light or Ignition Control Problems

If the pilot light or ignition control is not working properly it can prevent heat from flowing through the home. This issue can be caused by a number of factors such as a defective thermocouple, malfunctioning electrical components or improper gas pressure. To fix this issue you may need to replace the thermocouple, check the gas line for leaks or call in a professional HVAC technician to diagnose and repair more complex issues.

Overrun Heat Pump

Occasionally, an overrun heat pump can occur which causes the system to run continuously without ever reaching the desired temperature. This could be because of undersized equipment and/or ductwork, low refrigerant, bad reversing or compressor valves. or lack of proper maintenance or a malfunctioning component. If you notice that your system is running constantly and not achieving the desired temperature, it may be time for some maintenance or repairs.

Moldy Furnace

Mold can build up in the furnace and cause a number of issues. Not only is this bad for air quality, but it can also damage the furnace itself. To prevent mold from forming keep an eye out for any water accumulation near the equipment and make sure that you are changing your filters regularly as dirty filters can contribute to mold formation.

Leaking Ductwork

Leaks in ductwork aren’t always visible and can often go unnoticed until it’s too late. Leaks allow energy to escape which leads to inefficient heating and higher energy bills. If you suspect a leak, call in a professional who will be able to evaluate and repair any damages or replace worn-out components if needed.

No Fuel

Whether you are using gas, electricity or oil to power your furnace, it is essential that there is an adequate supply of fuel in order for it to function correctly. If the fuel level is too low or not reaching the appliance in an effective manner, this can lead to cold air being emitted, odors and fumes around your home as well as other heating problems. It’s important to regularly check the fuel levels and make sure there is a reliable flow of fuel for optimal performance from your system. If the fuel supply is not working properly, your system will be unable to heat your home. This could be caused by a blockage in the line that needs to be cleared or an issue with the fuel pump. Call in a professional who will be able to diagnose and repair any issues related to your fuel supply.

Lack of Circulation

If air is not circulating properly throughout your home, this can lead to uneven temperatures and higher energy bills. This could be due to closed vents or a blocked return air duct. To fix the issue, make sure all registers are open and unobstructed and clear out any debris from the return ducts. If that doesn’t work, it may be a sign of a more serious problem such as an obstructed blower motor or fan belt. In these cases, you should call in a professional HVAC technician to diagnose and repair any issues related to circulation.

High Energy Bills (Heat Pump)

If your energy bills suddenly begin to spike, it could be due to an issue with your heat pump. This could be because of a lack of maintenance, refrigerant leaks, worn-out components, or a damaged compressor. If your energy bills are higher than normal, it’s important to call in a professional technician to inspect the equipment and make any necessary repairs.


These are just a few of the most common problems home owners face with their heating systems during the cool weather seasons. AJM HVAC is here to answer any questions you may have or fix your heating systems when problems arise. We are a local company focused on customer service who truly care about every one of our clients. Contact us today!

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