Dometic Fridge Problem in a brand new unit
We have a 2021 Dynamax Isata 3 with a Dometic DMR-702 refrigerator that is acting up and could use some help from all of you experts on this topic. I have a request in to a warranty dealer to help wit...
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Not a drive-by post!
Thanks all for your suggestions on this thread so far.
@2oldman and @2112: Agree, regulators fail but I wouldn't assume they'd fail so intermittently. I get full pressure on the stove at all times.
@newmanfulltimer: Moisture freezing not really possible in San Diego where we live pretty close to the ocean (41F at night). Though, a theory I was playing with did have something to do with the quality of the propane. This unit came from TX where they may have filled it with a mixture that the fridge isn't happy with for some reason. On your second comment, yes voltage and ground confirmed. Air obstruction is still a little unclear on how to test that, wouldn't having run all of the appliances including furnace, stove, etc just naturally purge that out?
@opnspaces: No yellow powder visible
@wa8yxm: Checked for the drain tube, in place where it should be. Good suggestion though.
@jkwilson: Also a good suggestion on a manometer. This is my third RV so just sort of looking at the pressure coming out of the stove, it seems like plenty, especially considering what's needed for the fridge. Furnace also works well which consumes at a much higher rate.
@Old-Biscuit: Spark electrode is definitely suspect if in fact it returns a "hey a flame is present" to the control board. The error documentation on this leaves a lot to be desired, so based on my assumption those errors listed 1-3 aren't what I'm experiencing given both LP + temp flash (variably based on the setting, versus constant to the error). How would I know if that electrode is bad? A bad gap might also be a culprit too but would need to check the spec on that.
@Retired JSO: Correct, Dynamax is very responsive on their issues but given this is a Dometic issue vs the coach at this point they're deferring that back to the refer mfg.
Love the good ideas here. Will be taking the Isata out for the weekend to test it out and hopefully will have some more data to share.
Thanks all for your suggestions on this thread so far.
@2oldman and @2112: Agree, regulators fail but I wouldn't assume they'd fail so intermittently. I get full pressure on the stove at all times.
@newmanfulltimer: Moisture freezing not really possible in San Diego where we live pretty close to the ocean (41F at night). Though, a theory I was playing with did have something to do with the quality of the propane. This unit came from TX where they may have filled it with a mixture that the fridge isn't happy with for some reason. On your second comment, yes voltage and ground confirmed. Air obstruction is still a little unclear on how to test that, wouldn't having run all of the appliances including furnace, stove, etc just naturally purge that out?
@opnspaces: No yellow powder visible
@wa8yxm: Checked for the drain tube, in place where it should be. Good suggestion though.
@jkwilson: Also a good suggestion on a manometer. This is my third RV so just sort of looking at the pressure coming out of the stove, it seems like plenty, especially considering what's needed for the fridge. Furnace also works well which consumes at a much higher rate.
@Old-Biscuit: Spark electrode is definitely suspect if in fact it returns a "hey a flame is present" to the control board. The error documentation on this leaves a lot to be desired, so based on my assumption those errors listed 1-3 aren't what I'm experiencing given both LP + temp flash (variably based on the setting, versus constant to the error). How would I know if that electrode is bad? A bad gap might also be a culprit too but would need to check the spec on that.
@Retired JSO: Correct, Dynamax is very responsive on their issues but given this is a Dometic issue vs the coach at this point they're deferring that back to the refer mfg.
Love the good ideas here. Will be taking the Isata out for the weekend to test it out and hopefully will have some more data to share.
