tnank Posted August 25, 2015 Report Share Posted August 25, 2015 Hi. We have a 2005 Mountaineer 5th wheel. When I went to turn the AC on the other day nothing happened. No fan or AC. Tried just fan only and nothing. Tried the furnance and nothing. The thermostat is a Duo Therm 3107541.009. 120v is good thru circuit breaker. On the Thermostat the dc volts are good at the fan,hi fan cool,and furnace. I read where jumpering from fan lug to grd lug should make the fan work and nothing happen when jumpered. Anyone have any idea what is common to all three (the furnace, ac, & fan only). It's been quite a while since the furnace has been on so maybe it's 2 different problems. Thanks for any suggestions. Tom Link to comment Share on other sites More sharing options...
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