Having a problem with our 2012 32QBTS furnace with the Duo Therm thermostat. We will set the thermostat to 70 degrees. It will operate perfectly for several cycles only letting the temperature vary by a few degrees + or - and then all of a sudden it will not come on. The temperature will continue to drop and it will not come on at temps even below 65 it still will not come on. When it locks up and will not turn the furnace on the only way to get the furnace to run is to turn it off and then back on. It will then work for a few cycles and then lock up again. If you just leave it once it locks up it eventually will come back on but the temp may be 10 degrees or more below the set point. We have had it in for service on this twice. The first time the technician could not duplicate the problem and they did nothing. The second time it was in for service the tech was able to duplicate the issue. He then replaced the thermostat with the exact same model thermostat and it eventually did the same thing. They then called dometic and dometic's recommendation was to replace with a higher quality thermostat (at my own expense). Dometic also told them they were not meant for continuous use. When we go camping we like to have the furnace turned on to a set temperature the whole time we are set-up to camp. We do not want to wake up very cold in the middle of the night and have to go reset the system. Not a acceptable fix for such a high end trailer. Have others experienced this to your knowledge? Would like to have it fixed ASAP as we are going camping again over the Thanksgiving holiday. Thanks.
2012 Sabre 32QBTS - Triple slide bunk house, Propride 3P Hitch
2005 Excursion - lifted and heavily modified