I had a similar issue with crap analog thermostat.The white ground wire was loose which when the heater kicked on and fan started it would vibrate enough to lose ground and thermo would kick out.Tightened that down and heater still would not run correctly,it would run great for a few minutes then shut the flame off then re start,it kept doing that over and over,it would take 30 minutes to warm trailer up 5 degrees. Long story short dealer pulled heater and bench tested and sail switch was bad,runs great now.I know have 2 electric space heaters in case this happens again
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06 2500 Duramax. Air lift 5000 air bags,Equalizer WDH, EFI live,fass fuel system,4" straight pipe
2015 Jayco Eagle Premier 314BHDS
IBEW local 94 Electrical Worker
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