jornvango
Full-time RVer
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Looks like it's either Dometic RM2351, RM2451 or RM2551. Unsure how to know which of these three as the Dometic manual schematics in the RV lists these three for what matches what I see at the back of the fridge.
I tested both fuses on the control board and they're ok.
I tested 12V power leaving the RV's power center and it's ok.
When the power arrives at the back of the fridge, the multimeter only shows around 2.9 so not sure if I'm testing it wrong or if there could be an issue for the 12V not reaching the fridge and I should check the cable between the fridge and the RV's power center.
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dougrainer
Carrolton, Texas
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Joined: 06/11/2007
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2.9 is bad power.
1. Check the voltage at the Fuse in the Power center
2. PULL the fuse in the Power center if one side shows that 2.9. Bend the tabs on the fuse to seat in the fuse holder tighter. A loose fuse will cause your voltage problem.
3. when testing voltage at the back of the refer, use a frame ground for the negative tester probe instead of the Neg wire at the back of the refer. You could have a loose ground going to the refer. Doug
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wa8yxm
Davison Michigan (East of Flint)
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Joined: 07/04/2006
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Dometic.. May not be as bad as you think.. Some things to check before you reach for your wallet.
First if the on/off/temp controls et-al are above the top copartment pull that panel straight otu you will find a mulit-wire ribbon cable leading off to who knows were (Well I do as do many others) unplug and re-plug a few ties 3,5,10.
Oh that panel is called "The Eyebrow" you can put it back now.
Now to the other end of that cable A black box likely on the lower left in the OUTSIDE compartment.. Do the same thing on that end.
Inside said box you will find some fuses.... Check them
You may also have a terminal board bottom center in the outside compartment. ore fuses and possible bad traces (This is a basic board AND fixable if you have the skill. I do but will not instruct. NOTE about this board.... IF 120 volt is an option.. it will be there. it's also where the Ice Maker gets power if you got one... Thus caution please.
Now more on that board.
There is a long black or white tube ribbed.. It has a sort of a plug in the end of it.. This is supposed to be "put out" through one of the vent holes in the cover so it DRIPS DRIPS DRIPS on the ground.. alas many fail do do that and if you leave it INSIDE it drips, drips, drips on the terminal board mentioned above.. You can imagine the end result.
Funny note: Took my Dometic in for a recall. Was mentioning the "Many forget" part of the last pargraph when the service tech returned my keys to the service consultant. Service tech says "I always put it out"... he lied.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times
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Fulltimers
Anywhere, USA
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2.9 volts is your problem. No need to check anything else. Find where you.ve lost your 12V and repair and you will be back in business. Could be a rodent munched a wire.
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2003 Rexhall Aerbus 3550BSL
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2005 Saturn Vue (Mr. Toad)
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jornvango
Full-time RVer
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Update: after tracing where the wire loses the voltage, I got that fixed. I confirmed that the wire going into the control board at the back of the fridge is now receiving 13.3V
However, the fridge is still not turning on. I just did some research and, once I get back home, will check the control board to see that 12V power is leaving to the fridge power button.
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jornvango
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Update: the fridge is working again.
A guy came by to help troubleshoot. He tapped his hammer on the control board and instantly the fridge came alive!
So, he said some electrical connection probably corroded and the tap of the hammer restored the connection. He recommended to replace the control board. Makes sense?
I'm about to look for the replacement board.
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stevenal
Newport, OR, USA
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Joined: 03/16/2004
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Suggest seeing if Dinosaur has a replacement. Better than OEM in my experience.
'18 Bigfoot 1500
Torklifts and Fastguns
'17 F350 Powerstroke Supercab SRW LB 4X4
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