heater fan on today the switch was set to AC
I came in from work today my heater fan was running, the fan was running outside thru the heater exchanger but it had no heat in it and the heater fan inside was blowing. my switch was set to AC, I we...
Forum Discussion
Do you have the integrated thermostat, similar to this one?
Single-Zone-LCD-Operation-Manual_17590.pdf
Mine has the same thing, and I encountered this issue too. Old-Biscuit has the right answer: The fan setting needs to be set to Auto.
Early one morning, I got up and turned on the heat, and the A/C fan kicked in! No heat (maybe), but a lot of constant noise. I finally turned off the A/C breaker to stop the fan.
Researching the issue after we got home, I found the fan setting was on something other than Auto. I'd probably tinkered with the thermo at one point before the trip as it is a new unit, and I'd never had an integrated thermostat before.
Hope this applies to yours as well.
Single-Zone-LCD-Operation-Manual_17590.pdf
Mine has the same thing, and I encountered this issue too. Old-Biscuit has the right answer: The fan setting needs to be set to Auto.
Early one morning, I got up and turned on the heat, and the A/C fan kicked in! No heat (maybe), but a lot of constant noise. I finally turned off the A/C breaker to stop the fan.
Researching the issue after we got home, I found the fan setting was on something other than Auto. I'd probably tinkered with the thermo at one point before the trip as it is a new unit, and I'd never had an integrated thermostat before.
Hope this applies to yours as well.
