Jvand
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Re: Dometic RM3604 LP not re-igniting
I’m going to try a new board now and see if that resolves the re-igniting issue since I know all the components for LP are working properly. I know oftentimes calling a repair tech will get me a quicker answer, but I want to understand how my fridge works, hence why I posted her in the first place. I created 3 posts because they were all asking distinctly different questions. This one is specifically about lighting the LP.611Views0likes2CommentsRe: RM2652 cooling unit on RM3604
Thanks for the advice on this thread. I’m going to research purchasing a cooling unit built for the RM3604. my fridge is cooling but not able to get below 40*F in the fridge in the shade with the propane running all day. It will get colder on AC, so maybe that just means the flue tube needs a good scrub. I’ll clean the flue tube and then see how it does on propane before buying a new cooling unit.324Views0likes1CommentRM2652 cooling unit on RM3604
I’m considering replacing the cooling unit on my RM3604. The problem is the only cooling units I can find are over $600 (yikes, for a 35 year old fridge). I’ve seen very similarly sized fridges on Craigslist/offerup/etc. Does anyone know how interchangeable the cooling units are between very similarly sized fridges. I’m specifically wondering if the cooling unit from a Dometic RM2652 will fit on a RM3604. Thanks!375Views0likes4CommentsRe: Dometic RM3604 LP not re-igniting
Turns out that didn’t fix the problem. The fridge ran on propane for 12 hours without a check light because the propane wasn’t able to cool it down to the set point. I tried it again with the temp control set to min (highest temperature set point) and the flame extinguished when it hit that set point. Then the check light came on soon after, which I’m assuming was when the fridge tried to re-ignite the flame. Still no resolution for this and I may just find a new fridge replacement since it seems like it’s running really inefficient if 12 hours of LP flame on couldn’t get it down to the fridge set point.649Views0likes0CommentsDometic RM2620 Replacement
I have an old 1991 Lance that has a Dometic RM3604 which I’ve struggled to refurbish for months now and I’m finally giving up, everything works except it refuses to re-light the flame after the fridge cycles off and then back on. Anyway, I’m finally entertaining the idea of replacing it. The only direct fit replacement I can figure out is a Dometic RM2620. But this model looks like it was discontinued a while back. Kind of a long shot, but does anyone know where I can find a RM2620? the closest current Dometic replacement is a 2652 which is too wide for my fridge opening and would take some serious re-framing in my TC to accommodate.527Views0likes4CommentsRe: Replace fridge with different model?
I have sort of the opposite issue. I have a Dometic RM3604 (really old and discontinued) and the only direct fit replacement is a RM2620. Otherwise I need to do some reframing in my old TC to fit a 2652 in there. Where did you find a RM2620 for sale? Seems like Dometic discontinued them a while back.639Views0likes0CommentsRe: Dometic RM3604 LP not re-igniting
I bought a manometer and measured my LP gas pressure at the refrigerator gas solenoid (it had a test port plug I was able to remove and install the manometer fitting). Turns out my gas pressure was only 10inH20, but the service manual for the Dometic said to not let it drop below 11. I had recently installed a new propane regulator in the RV and wasn’t aware that the gas pressure could be adjusted. I fine tuned it with an adjustment screw on the regulator and now my pressure is at 11.5inH20. Fridge ran for 12 hours straight without shutting off, so it looks like it’s fixed!850Views0likes1CommentDometic RM3604 LP not re-igniting
Hello, I have an old Lance camper with a Dometic RM3604 refrigerator. I’ve sort of refurbished the refrigerator and got it back up and running on AC and LP, but recently it’s started having an issue where it will not cycle on and off on Gas. It always starts on LP just fine, runs for a few hours, then I’m assuming it kills the gas since it hits the cooling target. When it tries to start back up it fails to ignite and lights up the check gas light. I’m stumped as to what can cause this issue, I’ve read the service manual for this fridge, and there aren’t any hints I can find for this situation. I’ve done the following repairs on it: -new AC heating coil -new re-igniter module -new thermocouple -cleaned orifice, flue, and burner tube -cleaned/dielectric greased all the connector contacts -replaced any crimp spade connectors that looked corroded -verified good input 12V power (measured 13.7V)927Views0likes8Comments
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