Originally Posted by wifeytojosh
Ok, so we took our trip and decided to leave the gas on but it didn't work. What did work was when we hooked into the truck it ave power to the fridge and kept the food cold(and the beer). So I am even more confused now because as soon as we disconnected, it didn't switch to gas even though the gas lines were open and the fridge was on auto. Am I missing something here?
I think you said you have a 2010 Salem Cruise Lite and I would guess that this trailer has a Dometic fridge (probably a DM2652. Can you confirm that?) I doubt if you have a three-way, but let us know.
Assuming it is the 2652, then I would do a couple of things to diagnose the issue of it not switching to gas automatically.
First of all, it sounds like it worked connected to the truck but not when disconnected. Do you have a fully charged battery on the trailer? Your fridge needs 12volt power to operate with gas (as mentioned earlier).
Assuming you have a good battery, make sure that you are using the auto button correctly. You probably are, but just to make sure ...
To allow the fridge to choose between AC or Gas
- On/Off button is depressed to "on"
- Gas button needs to be pushed in.
- The "auto" light will light up and it will choose AC first and then gas if AC is unavailable.
- If 120 volts AC is not available, the control system will automatically switch to GAS operation. Within 45 seconds the burner should be ignited and operating normally. If unsuccessful, the CHECK indicator lamp will illuminate.
If you wanted gas only
and not AC
- On/off button is depressed to "on"
- Gas button needs to be out.
- The "auto" light will not light up.
- If the CHECK indicator lamp is illuminated the controls have failed to ignite the burner.
Here is the manual for that fridge - Dometic User Guide (DM2652)
LP Supply - simply light three or four burners on the range and visually "guestimate" whether the LP pressure is good by seeing if the range burner flames look good and do not decrease in size when all burners are lit. You should also try to remove the air in the lines heading to the fridge by switching the refrigerator on and off 3-4 times.
If gas is good, then there are more items such as checking the thermocouple and other items. I am sure someone here can help walk you through that process, but you might want to get a service tech doing this unless you feel comfortable with getting into the guts of the fridge.