Hello,

I am having trouble with my RTH230B Honeywell. I have a Gas furnace and an outdoor ac unit hooked up to a blower and the blower has a heat off cool setting on a switch on it.

Our when set on heat everything works as it should. BUT as soon as I turn the blower to cool it turns on and will not shut off even when the thermostat and ac pump has turned off.

It is wired in the thermostat with 2 wires but Im thinking its not the thermostat since the blower turns on automatically after setting it to cool.

Any idea on what wrong or how to fix it?

CHris

I am having this same problem over in this thread. Maybe we could combine forces and get an answer. :)

https://www.askmehelpdesk.com/heatin...ly-357034.html