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ivbinconned's avatar
ivbinconned
Explorer II
Jul 18, 2021

Fridge not cooling

Well slight cooling.
Kids bought an 04 Rockwood tent trailer. It has a small 3 way Dometic fridge mod number RM 4223.
Product # 00921130220. Serial 24300093
Type C40/110

We got the pilot lite working but it will not lite fully.
  • AC means alternating current which is what you get when plugged in. Some fridges operate on gas or AC. Some older ones operate on gas, AC or DC which comes from your battery.

    The fridge is not like the one in your house. You have an absorption system that requires a closed circuit in which refrigerant circulates. The circulation is caused by heat which is where the flame comes in. If your fridge requires the lighting of the pilot lite, then this is it. This is all the flame you need. It does not "come on" like a water heater does.

    Now, you also need patience. Once the pilot is lit, it might take hours to get things to cool down. Depending on the ambient temperature outside, it might take a day. If it never cools down then you have a different issue.
  • Thanks for the manual.
    It does not have electronic ignition so is it not the pilot that I see. And it would burn all the time?
    What do you mean by “AC”?
  • Are you saying that the flame is not right, or it is not cooling? If no flame, then of course no cool.
    Did u answer if it will cool on AC?
    First thing to check is for bugs. Dirt dobbers or other bees can nest in the propane areas and cause a no flame situation, check your propane furnace while you are at it.
    Many other things can cause a no-flame, including a bad thermocoupler, or one that has been knocked out of place.
    2004 is old enough that if the previous owner did not be very careful to never run the fridge while not level, that the fridge cooling unit is ruined. It might seem to cool a little bit, but will be so ruined inside that it will never run like new.
  • 2004 vintage.........

    Is it LEVEL?

    Does it cool on AC?

    Have they gone thru and fully cleaned the burner assembly,,,,,orifice, burner etc

    Service Manual

    Pg 8 Operation
    Pg 11....burner cleaning


    There is NO 'pilot' ....the Flame that lights IS the main flame

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