Dometic Fridge RM2553

Submitted: Wednesday, Apr 17, 2019 at 15:30
ThreadID: 138177 Views:917 Replies:3 FollowUps:4
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We have the above fridge in our caravan and the 240V stopped working however it still works on gas. Does anyone know why we cant get it to run back on 240V? Electrical fault????
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Reply By: Member - McLaren3030 - Wednesday, Apr 17, 2019 at 16:01

Wednesday, Apr 17, 2019 at 16:01
Hi Erich S2, I am not an electrician, and without sounding to condescending, have you checked the fuses/circuit breakers?

Macca.
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AnswerID: 625004

Follow Up By: Erich S2 - Wednesday, Apr 17, 2019 at 16:36

Wednesday, Apr 17, 2019 at 16:36
Thanks Macca, enquiring on behalf of my dad. He wasn't sure where the fuse was?
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Reply By: Member - Peter C29 - Wednesday, Apr 17, 2019 at 16:16

Wednesday, Apr 17, 2019 at 16:16
Hi Erich S2
Possibly the 240 volt heater element has gone faulty - this is a common problem. Access to element is via the back of the fridge, if not familiar with electrical wiring then best left to a professional repairer.

Peter C29
AnswerID: 625006

Follow Up By: Erich S2 - Wednesday, Apr 17, 2019 at 16:37

Wednesday, Apr 17, 2019 at 16:37
Thanks Peter I am enquiring on behalf of my Dad I will let him know.

Many thanks
heidi :)
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Follow Up By: Erich S2 - Sunday, Apr 21, 2019 at 10:53

Sunday, Apr 21, 2019 at 10:53
Thank you Peter for your reply yes we think the element has gone??
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Reply By: Erad - Wednesday, Apr 17, 2019 at 17:19

Wednesday, Apr 17, 2019 at 17:19
Depending on how handy you are with a multimeter, you can unplug the fridge, set it to run on 240 V, turn the thermostat down to its lowest temperature (highest number on the dial) and measure the resistance. It should be about 500 ohms. Then, rotate the temperature setting knob to the other extreme and see f the resistance changes. If you get an infinite reading on the multiimeter, the heating element is probably burnt out. A common problem. It could also be the thermostat contacts not closing, but this is rare. Burnt out elements are more likely.

To replace the element, you have to take the fridge out from its place in order to access the element and remove it. It will be in an insulated galvanised metal cover, rather like a 90 mm downpipe. The 12 V element will also be there. Unless you are handy with tools, it is probably best to take the van to someone to remove and replace the fridge element.
AnswerID: 625008

Follow Up By: RMD - Wednesday, Apr 17, 2019 at 21:54

Wednesday, Apr 17, 2019 at 21:54
The above information is a good way to check the fridge 240v element.
However, if you have a common wattmeter often sold in ALDI or Jaycar you can use it to check if the fridge draws any and how much power it consumes if it actually operates.
First make sure the power point the fridge uses does run other appliances, to check the power point supply.
Then plug the Wattmeter into the same power point and it will read the supply voltage, ie, checks there is power/voltage there.
Then plug the fridge into the wattmeter and you should see the Watts and Amps by simply changing the reading mode.
If the 240v heater is around 150w rating it will/should be drawing approx that wattage reading on the screen.
If not, then as mentioned, the element may be burnt out or the selector switch of the fridge may not be operating correctly and not connecting the 240v element to the power source. Using a wattmeter/power meter is a safe way to check if safe multimeter use is not an option.
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