motc777 wrote:
OK about an hour ago, I decided to try Propane mode. I checked outside and sure enough, the burner fired right up. After one hour, I checked the pipe stack and the coils on the back. Both are warm. With the unit on electricity using the heating element, only the stack got warm, and never the coils on the back.
It's been close to 1.5 hours, and in the freezer, what little water drops have frozen.
I guess the real test ill be in the morning after it's run all night tonight. But, for the sake of argument, if this unit runs on propane, but will not work on electricity only (i.e. Auto) and reminding everyone I just put in a brand new element, what could it be?
Control board?
NEVER a control board. All they do is switch between LP and 120 and monitor the cold for the Thermister. ARE you POSITIVE you put the correct wattage Heat Element in? They are not all the same. In extreme rare cases the heat element tube is not attached securely to the burner flue. NO problem on a Dometic as Dometic has 2 heat element sleeves. If you suspect this you just move the heat element to the other sleeve. To verify the Heat Element wattage you either look at its stamped display on the element or you do a AMP check. The amp check will tell you the wattage. Doug