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Caravan & motorhome technical questions

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Question

I have Dometic RM7271 Absorption Fridge. If the LED does not light up on 12V, does it mean that the fridge is not working? There is voltage at the terminal block on top of the fridge.

Answer

The 12v switch on the fridge will only work when the car is plugged in or the motorhome engine is running. There are two 12v feeds to the fridge, one is to run the circuit board and the D+ connection is to run the fridge when the engine is running, the LED should not light up unless both 12v feeds are live.