Fan Only Mode Not Working, Indeed recently has been hunted by consumers around us, perhaps one of you personally. People now are accustomed to using the internet in gadgets to view video and image information for inspiration, and according to the name of this article I will discuss about
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Cpu fan pwm. I am using 4 wire hunter thermostat model 44110. Fan only mode does not work everything else works fine. I have a furnace only and the old thermostat only had 3 wires connected.
The heating system is working fine except that when the heater is not engaged and i turn the fan switch to on the fan does not come on. The furnace changes status from op to f5 when i switch to fan mode means fan at 500 cfm rounded but the fan does not run. During the setup of the nest it tested the heat works heat comes on and fan blows tested the cooling works ac comes on and fan blows and tested the fan worked presumably fan came on.
I was going to get my thermostat replaced for free by my power company and the tech that came out couldnt do it because he said my blower fans independent fan control isnt working. You can run your systems fan independently of heating or cooling. I turn the fan position to on the fan will not work and turn on.
I have a trane powerlink ii heat pump system. The old thermostat had a fan only mode that worked fine. Posted by 5 years ago.
Fan only mode does not work everything else works fine. The problem is that when. Everything works on furnace as expected in cooling and heating modes with correct airflow but fan only mode does not work.
The heat and cooling still work and blow but the fan only modes do nothing. Your system doesnt need to be actively heating or cooling to run the fan. The fan will work properly when the cool is on.
You can only run the fan when your thermostat is set to eco heat cool or heat cool mode.