Refrigerator only works on shore power?
So my trailers refrigerator stopped working while dry camping this weekend. It will only work on shore power (120V), if I switch it to propane, the pilot light fires up it runs for about 2-4 minutes a...
Forum Discussion
When the furnace goes to light on LPG, the Logic Board sends power to the Gas Valve to open, and STAY OPEN long enough for the ThermoCouple (TC) to get hot. Then the board takes the power it provided away, relying on the power produced by the TC to continue to hold the valve open. No TC output, gas valve flops shut, LPG flow stops, flame goes out. Our early model Dometic (RM763) would actually cycle. You'd hear Clunk>Spark>Pop>Flame>Click>Flame Out>...Repeat...
In this picture, the connector that attaches to the gas valve is in the middle of the loop. The Loop Looks like copper tubing and the Nut Looks like a gas fitting nut. But they are NOT. The tubing is one side of an electric "cable" and the other conductor runs down the center inside some insulation. Finger tight plus maybe 1/4 turn is all it takes to make up the connection. There's no LPG there to leak, so it doesn't have to be tight. And too tight will short out the connection and the ThermoCouple won't work.
EDIT: Doug was typing while I was. Suggest going with his timing on the cycling of the gas valve. As I remember, when our old Dometic was doing that (and it turned out to be a bad TC) the cycle was less than a minute.
In this picture, the connector that attaches to the gas valve is in the middle of the loop. The Loop Looks like copper tubing and the Nut Looks like a gas fitting nut. But they are NOT. The tubing is one side of an electric "cable" and the other conductor runs down the center inside some insulation. Finger tight plus maybe 1/4 turn is all it takes to make up the connection. There's no LPG there to leak, so it doesn't have to be tight. And too tight will short out the connection and the ThermoCouple won't work.
EDIT: Doug was typing while I was. Suggest going with his timing on the cycling of the gas valve. As I remember, when our old Dometic was doing that (and it turned out to be a bad TC) the cycle was less than a minute.
