The Most Common Furnace Repairs and Solutions

If you’re having trouble with your furnace, you may wonder what to do. Here are a few things you can check to fix your furnace. First, check your thermostat. If it is not working, you may need to replace the battery. Also, check the circuit breaker and the limit switch.



While furnaces are vital to our comfort during winter, they can also cause problems and require professional furnace repair near me. While most furnace problems are simple and can be fixed by a homeowner, there are times when a faulty component causes these issues. Thankfully, there are ways to troubleshoot and fix furnace problems.

A clogged furnace filter, poor airflow, or a wrong thermostat setting can all be the source of heating problems. A faulty furnace control board, blower motor, or transformer could also be to blame. Although it’s tempting to try to troubleshoot these issues on your own, it’s best to call a professional HVAC technician to do the job correctly. Another issue that may require a professional is a faulty limit switch. While it is unlikely to cause your furnace trouble, you should keep it powered off until the technician arrives. If you smell a burning smell while the furnace runs, it’s likely a sign of a clogged burner or furnace filter.

Inspecting the furnace’s intake and exhaust vents is an essential first step in troubleshooting. Be sure there is no debris or ice in the vents. If the airflow is restricted, you should open windows to provide fresh air. Also, check the heat exchanger in the furnace, which is the section responsible for producing warm air for the home. It consists of metal shells and tubes, often in different shapes.

Checking Thermostat

One super common furnace repair and solution is checking the thermostat. Often, a thermostat that reads “on” or “high” is not working. If the temperature in your home seems to fluctuate frequently, try to move the thermostat dial to the “auto” position. If this doesn’t work, contact a furnace repair company for assistance.

Checking the thermostat will also allow you to determine the cause of the problem. It could be faulty wiring or simply a missetting of the thermostat. You may also need to change the batteries. The thermostat may be too far from any heat sources, which may mean it needs to be moved.

In addition to checking the thermostat, you should also inspect the circuit breaker. It is a common cause of furnace problems and may require the attention of a trained HVAC technician. Even if the thermostat is working correctly and you recently changed the air filter, you might still have issues. It would help if you never attempted to repair a furnace without any HVAC training.

Checking Limit Switch

If the temperature of your furnace has dropped, you may need to check the limit switch. This component can wear out, especially if exposed to high temperatures. It is essential to keep the filter clean, which will help the limit switch last longer. In addition to changing the filter every three months, you should also clean the temperature sensor on the limit switch. A dirty sensor can cause the limit to switch to trip or lockout. If this occurs, you may have to call a professional.

The limit switch is a component that controls the amount of air that enters and exits the furnace. A malfunction in this component will reduce efficiency and result in system failure. It is located in the furnace’s housing and includes a temperature sensor probe that extends through it. This sensor determines the subsequent actions of the limit switch. The thermostat is another part that senses the temperature of the HVAC system and maintains a safe temperature.

The limit switch is an important safety feature for your furnace. It prevents the furnace from overheating and is responsible for shutting down the furnace in case of overheating. However, dirty limit switches can cause malfunctioning of the system, and you should replace them as soon as possible.

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