Why does my electric furnace keep running?
A dirty furnace filter is the number one reason we’ve found that furnaces run constantly. The air filter captures dust, pet hair, and debris that could damage the furnace and keeps it from getting to the heat exchanger. If the filter is dirty, it restricts airflow across the heat exchanger, which causes it to overheat!
Why is my electric furnace blowing lukewarm air?
Check your thermostat’s settings, because your thermostat could be set to “Cool” which will limit your furnace from blowing hot air. Check that your air filter is clean and you don’t have a clogged air filter. Check that your circuit breaker is not off.
Do furnaces have a cool down cycle?
As the temperature in the furnace rises, the system will eventually activate its limit switch and shut down as a safety measure. The system will cool off for a while, then will restart.
Why does my heater keep running after it has reached the set temperature?
When your furnace keeps running after the temperature has been reached: Check the blower motor – Your forced air heating system uses a blower to push air through ducts and into your living space; sometimes, the blower runs at the same time that your furnace is heating the air, but sometimes it runs on its own.
Why is my electric furnace not shutting off?
If your furnace won’t shut off, you likely have one of the following issues: Thermostat issue. Dirty air filter. Faulty blower.
Why doesn’t my thermostat turn off when it reaches temperature?
The Thermostat Could Be Faulty
If your heater won’t turn off, the first thing you do is check the thermostat. The thermostat controls how the heating system runs. It detects the indoor temperature and signals the furnace to start or stop. So, if the thermostat malfunctions, it can signal the unit to run continuously.
Why is my furnace still running when turned off?
If you’ve followed the first two steps but your furnace still won’t shut off – it’s time to call Aspire. It could be a faulty blower motor switch, leaky ductwork, or a wiring problem on your thermostat. You’ll want a qualified professional to take care of these problems.
How do you know a thermostat is bad?
7 Ways to Tell Your Thermostat Is Broken
- Thermostat Has No Power. …
- AC or Furnace Won’t Turn On. …
- Heater or AC Won’t Turn Off. …
- Thermostat Doesn’t Match Room Temperature. …
- Thermostat Doesn’t Respond. …
- Short Cycling. …
- Thermostat Forgets Programmed Settings. …
- Thermostat Replacement Services.
Is it OK to run furnace fan constantly?
Running the furnace fan constantly won’t necessarily make it fail sooner. You can actually extend service life by keeping the fan on, provided that the equipment was properly installed, and your ductwork is correctly sized.
Is it better to leave furnace fan on or AUTO?
“auto” is the best setting for your furnace fan in the winter. It will aid in saving energy and money while also working to keep your home at an optimal temperature. However, for summer, “on” is the best setting for your furnace fan.
Should fan be on AUTO or on in winter?
When it comes to whether you should set your furnace fan to “on” or to “auto” in winter, the answer for me is “auto” because it’s the move that has the most to do with energy efficiency. It is not, however, the only thing you can do this winter to bolster your HVAC system’s energy efficiency.
