Common Heater Problems and What You Can Do

Common Heater Problems and What You Can Do

Common Heater Problems and What You Can Do

With winter quickly approaching, you'll want to ensure that your heater is working properly. One of the last things you want is to have a broken heater during the coldest months of the year. It not only leaves you feeling uncomfortable but can also be a costly repair.

If you're experiencing issues with your heater, don't worry; most heater problems can easily be fixed. In this blog, we'll discuss some of the most common heater problems and how you can fix them.

1) Dirty Filters

Dirty filters are a common problem for many heaters. If your heater filter is dirty, airflow is restricted, causing the heater to work harder, leading to higher energy bills. A dirty filter can also lead to the heat exchanger becoming too hot, which can be dangerous. To maintain your heater properly, ensure that you clean or replace the filter at least once every 3-4 months. 

2) Thermostat Malfunction

If your heater is not producing heat but the fan is running, it may be a thermostat malfunction. A malfunctioning thermostat can prevent the heater from turning on, so it's essential to check if the thermostat has been appropriately programmed. If the thermostat is functioning correctly and the heater still doesn't turn on, then it's time to call an HVAC professional. 

3) Pilot Light Problems

If your heater has a pilot light, you may experience issues with the light itself going out. In many cases, it can be easily relit. However, if you've tried relighting the pilot light a few times and it keeps going out, then you may be experiencing a thermocouple issue. A bad thermocouple will not allow the pilot light to stay lit, which means that the heater won't turn on. 

4) Blower Motor Problems

The blower motor is responsible for moving hot air from the heater through the air ducts into your home. If your blower motor is malfunctioning, it can cause cold air to blow out of the vents or no air to blow at all. If you're experiencing issues with the blower motor, it's essential to call an HVAC professional. 

5) Ignition Problems

The ignition system is responsible for creating a spark that lights the burner, which ultimately creates heat. If your ignition system is malfunctioning, it can lead to the heater not working at all. Ignition problems are often caused by wiring issues and may require the assistance of an HVAC professional.



Having a broken heater can be uncomfortable and frustrating, especially during the colder months. Fortunately, most common heater problems can be fixed quickly, saving you money and stress. If you're experiencing an issue with your heater and aren't comfortable fixing it yourself, contact an HVAC professional to get it sorted. By keeping your heater maintained, you can avoid having significant issues and costly repairs in the future. If you're looking for an HVAC supplier, contact Discount Air Supply today for more information.

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