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Dometic RM 2820 problem

May 18, 2014, 09:12:48 pm

 Anyone run into this one?
Geoff's (my Brothers) fridge has 12v and 120 to it and both test out fine to rear of fridge, and glass fuses on rear circuit board are good but there is no light on top panel showing power on and we cannot get anything to work. Any ideas gang??
JohnH

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Re: Dometic RM 2820 problem

Reply #1 – May 18, 2014, 11:13:07 pm

Just keeping it in view as we need help on this one
John H

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Re: Dometic RM 2820 problem

Reply #2 – May 19, 2014, 05:57:31 am

John, sounds like the lower control board, check power going in to it and out to the eye brow board (inside). Also check for a good connection at the 12V ground in the back of the fridge. If I am not mistaken the fridge needs 12v to operate on any function. I have replaced a couple of the lower control boards with Dinosaur boards (Dinosaur Electric) no more problems. They make both replacement boards, I just replaced mine because of relite, and switching from gas to electric issues.

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Re: Dometic RM 2820 problem

Reply #3 – May 19, 2014, 10:36:29 am

Bruce, thx, we do have power going to fridge but not sure how to check for it going to "eyebrow board"?
Geoff had a problem with the alternator pumping out up to 24v ( short few minutes) befor fixing it and as the fridge power is on that basement panel with a few other things that do not go thru the same "off line power" I wonder if that power surge did it in . The porch lite and touch lite handle are also giving problems so guess that these too are very sensitive to that power surge.. We are working on those and rewiring/fitting for LED.
JohnH

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