Forum Discussion

navy80to04's avatar
navy80to04
Explorer
Jul 11, 2013

AC/Heater Thermostat not working

Hello All,

On my camper, I have a analog thermostat Compressor the AC and furnace, The Mice destroyed the furnace control board the first year I had it. unplugged it and have used plug in Ele heaters, Saves on LP. No more mice after that. jump 2 years and now The wall thermostat now works only sometimes. I have checked it and sometimes it puts out 12 vdc and sometimes not. will not put out 12 vdc to the fan when the AC kicks in so only the compressor is working, no fan. I can run the fan only on hi only with the thermostat set to fan not auto. Time to spend some $$ for a new thermostat. I think I will go to the analog thermostat. the Dit ones cost big $$. I need a 6 wire 12vdc one, unless I just get one of the old ones for the furnace too and have two thermostats on the wall.

4 Replies

  • I purchased a honeywell digital thermostat that operated on batteries to replace my OEM coleman - cost about $20 as I recall. My old thermostat was inaccurate and when the air conditioner was turned on the fan ran constantly even when the compressor turned off - new thermostat turns off the fan when the air compressor shuts down - downside I lost the "fan only" feature but I never used that anyway.
  • Do you have a wiring diagram? I wish to do this as well.
  • I installed a digital battery operated thermostat and it seems to work well for the ac and furnace...