View Single Post
Old 04-10-2013, 05:11 PM   #3
RVTrucker
Junior Member
 
Join Date: Mar 2013
Posts: 2
Default Re: NO FURNACE NO AC

I received the new thermostat form amazon today. I immediately noticed that it wasn't the same but decided to try it anyway. The difference was that it was digital and instead of a 7.5v dc hot wire and a ground the new one had a 12.4 positive and a 12.4negative. I hooked the 7.5 v wire to the positive and the negative to the ground. All other wires were the same. The furnace worked but when i turned on the ac the compressor started but the fan wouldn't work in the hi or lo position. This told me that neither the furnace or ac unit was bad so i drive 3 hours to an rv dealer that had the exact analog replacement. Upon installing it I had the same problem that I initially had. No furnace and no ac. Now I am totally lost. I did check all the fuses again to make sure I hadn't blown anything with the digital thermostat.
RVTrucker is offline   Reply With Quote