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| Dometic 3 way fridge | Login now/Join our community |
 1/21 |
I have a 93 Breakaway with a Dometic fridge that will no longer select the 12v option. When ac is not available it goes straight to gas. Any ideas? Former Breakaway owners | ||
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| 6/12 Formally known as "Humbojb"  |
On ours, there is an on/off switch for the DC. Is yours turned on?
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| 1/21 |
Yes the switch is in the correct position. Thanks Former Breakaway owners | |||
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Official Barth Junkie  |
Are you sure you have DC power to the fridge? Maybe a fuse, etc?  My frig has only 110 AC and gas... I think I may have some documents for it that may cover DC also...  9708-M0037-37MM-01 "98" Monarch 37 Spartan MM, 6 spd Allison Cummins 8.3 325+ hp | |||
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| 2/16 Captain Doom  |
There will be 2 electric elements - one for 120 VAC, the other for 12 VDC. Check the connections to the 12V one. If they're good,check the resistance with it disconnected. Resistance should be ~0.5-1.0 ohm. If the element is open or shorted, the control board won't switch. Finally, note that if you're using the "auto" feature, the order is AC, LPG, 12 VDC. If the CB senses and can light propane, it won't switch to 12V. Rusty  "StaRV II"'94 28' Breakaway: MilSpec AMG 6.5L TD 230HP Nelson and Chester, not-spoiled Golden Retrievers Sometimes I think we're alone in the universe, and sometimes I think we're not. In either case the idea is quite staggering. - Arthur C. Clarke It was a woman who drove me to drink, and I've been searching thirty years to find her and thank her - W. C. Fields | |||
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| 1/21 |
Yes it has 12 volts. As I understand it there is a sensor that can tell when the battery is being charged & will only allow the fridge to run on 12 v dc when charging occurs. I am thinking this might be the problem but i dont know how to check for it. Former Breakaway owners | |||
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| 1/21 |
Ok I will try to test the 12 volt element. With gas shut off & engine running & selector set on auto the fridge goes into failure mode Former Breakaway owners | |||
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according to our to your statement,when ac is not available it goes straight to gas,is what my dometic does,as it is supposed to.wally vanisle. | ||||
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| 2/16 Captain Doom |
Not quite - it has a low-voltage sensor that shuts off the 12 VDC if the battery's low. Rusty "StaRV II"'94 28' Breakaway: MilSpec AMG 6.5L TD 230HP Nelson and Chester, not-spoiled Golden Retrievers Sometimes I think we're alone in the universe, and sometimes I think we're not. In either case the idea is quite staggering. - Arthur C. Clarke It was a woman who drove me to drink, and I've been searching thirty years to find her and thank her - W. C. Fields | |||
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5/10 |
Ours only run on 12V with the engine running. 1999 Bluebird Custom 33' 8.3 Cummins diesel pusher Former owner 1989 Barth Regal 25' | |||
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8/10 |
Are you able to tell-us which fridge you have with model number. Can you supply a photo? Photo of the control board. Photo of the eyebrow. I have recently replaced both the control board and eyebrow in mine. ~Mac~ 1990 31 Foot Regency Spartan Chassis Cummins 6CTA8.3 Alison MT643, 4-speed 8905-0123-31RDS-A2 | |||
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3/22 |
Don't want to thread wander but Medic did you get everything working after your overload. Dana & Lynn 1997 38ft Monarch front entry Spartan Mountain Master Chassis Cummins 8.3 325hp Allison MD-3060 6 speed 22.5 11R Cummins Factory Exhaust Brake 8000 watt Quiet Diesel Generator 9608-M0022-38MI-4C Christened Midnight 1972 22ft 72081169MC22C Christened Camp Barth | |||
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| 1/21 |
Ok, it is a Dometic model RM4804. On this model the selection process is AC first, DC second (if engine is running) then gas. Former Breakaway owners | |||
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| 5/10 |
Ours was a Dometic Royale but the model# went with the new owner. First selection was automatic (1st AC if hooked up or genset, 2nd choice gas and 3rd 12V if engine running), second selection was A/C or gas and third button gas only. ALSO 30 MIN time delay to light gaas after running engine. 1999 Bluebird Custom 33' 8.3 Cummins diesel pusher Former owner 1989 Barth Regal 25' | |||
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| 2/16 Captain Doom |
Brain pfart - my Norcold will run on 12 VDC without the engine running; it has low-voltage cutout. Rusty "StaRV II"'94 28' Breakaway: MilSpec AMG 6.5L TD 230HP Nelson and Chester, not-spoiled Golden Retrievers Sometimes I think we're alone in the universe, and sometimes I think we're not. In either case the idea is quite staggering. - Arthur C. Clarke It was a woman who drove me to drink, and I've been searching thirty years to find her and thank her - W. C. Fields | |||
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