Program heater setting to cut ac unit off.

[Oldtrh]

Does anyone know if there is a way to program the thermostats so that the fan on the ac unit s don't come on when you turn the furnace on?

[Big_Boy]

Originally Posted by Oldtrh

Does anyone know if there is a way to program the thermostats so that the fan on the ac unit s don't come on when you turn the furnace on?

I have the same problem and it certainly does not seem like this is the way the furnace should work. Why would we want the A/C fan to come on along with the furnace blower? Just blows cold air down your neck and makes a huge noise.

All I have been able to do so far is to turn off circuit breaker for front A/C unit.

Thanks for raising this issue as I was just about to do the same.

[Indy1951]

On your thermostat make sure that the fan is set to auto

[tcopeland]

Originally Posted by Indy1951

On your thermostat make sure that the fan is set to auto

That's right on!

[ferg182]

I agree have to be on automatic!


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[Gingerela]

Thank you! Just turned my furnace on for the third time in two years and couldn't figure out why the A/C was running.

[Oldtrh]

That works. You guys rock. Thanks so much.

[Big_Boy]

Auto setting works! Another mystery solved. Thanks...