Heat Pump Issue

[par]

Hi,
I'm checking to see if any of you have come up with this problem. I have 2 air conditioners/heat pumps on my FL36. Recently the back unit throws cold air when I set the thermostat to Elec. Heat. The front unit works fine. Any ideas or suggestions would be appreciated.
Thanks,
Paul

[XCMARK]

If the unit still works on AC(cold air) it most likely will be a bad tstat. The slide switch on our 2015 was acting up until I cleaned the slide contacts on the switches to select heat/AC.

[inb2winger]

You should have two thermostats and each works one AC/Heat pump. Do you have both set properly.