SOLVED: Furnance came on
- Thread starter rdgt67
- Start date
TxCowboy
Well-known member
Re: Furnance came on
Hola, Pat! Take a look at the thermostat that is controlling your kitchen AC as it likely controls both the kitchen AC and the furnace. (I think it's the bottom thermostat in the hallway.)
Make sure that the kitchen AC/furnace controller isn't running a program where you have a temperature range selected, e.g., furnace will come on at 67 degrees and the air conditioner will come on at 74 degree (just as an example). This could turn on your furnace which will pump heat throughout the Key West. However, it may also trigger your living room and/or bedroom AC which are trying to keep the interior cool.
There may be other things going on so I'm sure others will chime in soon with their suggestions.
Hola, Pat! Take a look at the thermostat that is controlling your kitchen AC as it likely controls both the kitchen AC and the furnace. (I think it's the bottom thermostat in the hallway.)
Make sure that the kitchen AC/furnace controller isn't running a program where you have a temperature range selected, e.g., furnace will come on at 67 degrees and the air conditioner will come on at 74 degree (just as an example). This could turn on your furnace which will pump heat throughout the Key West. However, it may also trigger your living room and/or bedroom AC which are trying to keep the interior cool.
There may be other things going on so I'm sure others will chime in soon with their suggestions.
danemayer
Well-known member
Re: Furnance came on
One of your thermostats controls the furnace as well as one air conditioner. Some thermostats, the Dometic Comfort Control II for example, have an auto mode that's supposed to switch between air conditioner and furnace automatically. This is different from having the FAN Mode set to AUTO. If the temp at that thermostat dropped by a few degrees, it might have shifted into heat mode.
If you'd like to control what happens, change the thermostat mode to either COOL or HEAT and it will operate in that mode only. Keep the FAN Mode set to AUTO. If the fan is set to high or low, when the furnace starts, the A/C blower will also start, pushing air out the ceiling vents.
One of your thermostats controls the furnace as well as one air conditioner. Some thermostats, the Dometic Comfort Control II for example, have an auto mode that's supposed to switch between air conditioner and furnace automatically. This is different from having the FAN Mode set to AUTO. If the temp at that thermostat dropped by a few degrees, it might have shifted into heat mode.
If you'd like to control what happens, change the thermostat mode to either COOL or HEAT and it will operate in that mode only. Keep the FAN Mode set to AUTO. If the fan is set to high or low, when the furnace starts, the A/C blower will also start, pushing air out the ceiling vents.
Last edited:
Similar threads
