Forum Discussion

huron52's avatar
huron52
Explorer
Aug 18, 2016

How do I trouble shoot my thermostat to rule it out?

Looking on the internet I think I have a Coleman Mach 7330-3322. When I turn it from off to either heat or cool I get the fan on the heater. From my search I have found I have a Green wire- High Fa...
n7bsn's avatar
n7bsn
Explorer
Aug 19, 2016
The Fan-hi and Fan-lo wires should go to the A/C unit
Only the white wire controls the heater.

It's not making sense to me, my guess is that the thermostat electronics might be hosed up

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,280 PostsLatest Activity: Jul 09, 2025