What Causes a Heater to Stop Working?
When temperatures drop and your heater suddenly stops working, it’s not just inconvenient—it’s uncomfortable. At Integrity Air Solutions, we often help homeowners troubleshoot heater issues before they become costly repairs. So, what could be causing your heating system to stop working?
Common Causes of Heater Failure
Dirty or Clogged Air Filter:
A dirty air filter restricts airflow and can cause your heater to overheat and shut down. It’s one of the most common and preventable reasons for heater failure. Replacing the filter regularly can keep your system running efficiently.
Faulty Thermostat:
If your thermostat isn’t working properly, it may not signal your heater to turn on. Whether it’s low batteries, faulty wiring, or calibration issues, the thermostat is always worth checking first.
Tripped Circuit Breaker or Blown Fuse:
Sometimes, your heater may lose power due to a tripped breaker or blown fuse—especially after a surge or overload. Inspect your home’s breaker panel and reset any tripped switches related to the HVAC system.
Pilot Light or Ignition Failure:
In gas heating systems, the pilot light or electronic ignitor starts the heating process. If the pilot goes out or the ignitor fails, the system won’t heat your home. These parts often wear out with time and may need replacement.
Malfunctioning Blower Motor:
Even if your furnace is producing heat, a failed blower motor will prevent warm air from circulating through your home. This issue usually requires professional repair.
Damaged Heat Exchanger:
Cracks or damage in the heat exchanger can cause the furnace to shut down for safety reasons. This is a more serious problem that should be addressed immediately by a qualified technician.
Conclusion
