Question about Refrigerators
When my motorhome is plugged into 30 amp, I can click on Auto and the refrig will start in ac mode. But shortly thereafter it will switch to dc mode. What causes that?
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Posted on Jan 02, 2017
SOURCE: dometic refrig,curcuit boards
thats normally a problem of either parts wear and tear or spiking in the the AC line ... if something like a water pump or something that turns on and then off suddenly is on the same line as the refridgerator it can cause such a problem also if the wires in the wall outlet or panel box have begun to run slack it can cause such problems as well ....
Posted on May 19, 2009
This link will help with testing and resolve your problem. Can not resolve without these tests.
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Posted on Mar 30, 2009
Hi and welcome to FixYa, I am Kelly
If you look at the last page of the parts list (page 10) it is showing a thermostat across the Black and white wires.
There is not a fuse that I can see. The fuse has to be external to the unit. You should be able to read continuity (resistance) of the AC heating element at the power cord with the AC switch ON.
AC Power source must be removed to perform resistance checks.
No continuity there are 2 possibile failures (Other than wiring)
1. AC heating element
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Posted on Jul 22, 2011
Testimonial: "very clear answer to my question i determined that the AC heating element was at fault. no connectivity as suggested in the question. "
SOURCE: I have an old RM
Easiest and cheapest solution I see is to by a simple 12 Volt toggle switch and cut one of the wires from board to 12 VDC element and run it to a toggle switch mounted inside near fridge. One terminal on switch will be wire from board, and other terminal on switch will have wire going back to wire cut going to element. Simple and cheap , on, off, solution, just be sure to use heavy enough gauge wire, and add an inline fuse if you want for added safety.
Posted on Sep 18, 2011
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From the hip given the fuse was removed I would suspect the heating element but.. follow the sequence above.
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