Honeywell Thermostat Says Aux Heat On - When you buy a new honeywell thermostat, there’s a certain temp that you’ll need to set as. Web your thermostat inside your house is actually what determines when the auxiliary heat gets turned on. Aux ht or auxiliary heat is the backup heat that turns on to help the compressor for first stage maintain. Keep the house temperature low.
Aux ht or auxiliary heat is the backup heat that turns on to help the compressor for first stage maintain. Web your thermostat inside your house is actually what determines when the auxiliary heat gets turned on. Keep the house temperature low. When you buy a new honeywell thermostat, there’s a certain temp that you’ll need to set as.