Question about Dometic RM2652 Refrigerator

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I just replaced the converter in my motorhome and everything works but the fridge won't work on house electricity, only gas ???

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Hello,

The old converter may have blown out the control board for your 'fridge. This is quite common if the voltage exceeds 15.5 volts, and when there is a ripple voltage (AC voltage component) riding on top of the DC voltage.

Gas / LP mode is the default for this fridge, a fail safe mode.

You can find the service manual for your fridge here.

Posted on Jul 08, 2010

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You need a little more knowledge ... I'm here to give it.

Your RV refrigerator requires 12 volts to operate; on gas or on electric ... it needs 12 volts - period.

Now then, your frig will get 12 volts from your 'power converter' AND/OR your battery. You do have a battery in your unit, correct? If not - why not? Get one. (Your power converter cannot provide all the 12 volts you potentially require in all circumstances. It is there to charge the battery, which CAN supply all the 12 volts you require. The converter can probably put out 15 amps - your battery can put out 100 amps or more (@ 12 volts DC). Relying only on the converter for your 12 volts will cause over heating and will eventually destroy the converter. Batteries are about $100.00 - converters are about $300.00.

As you know, your frig will run on gas if you are plugged in or on generator ... that allows your frig to get the 12 volts required to run the controls.

What about electric operation? If you are plugged in or on generator, you can run on electric because your Norcold has 12 volts from the converter and/or battery.

Whats going on? Your absorbtion type refrigerator requires a heat source to boil the ammonia mixture to create "heat removing" (you can't really cool anything ... only remove the heat from it!) You can heat the ammonia with a flame or with a electric CALROD. However, the control panel that drives the whole operation runs of 12 volts.

You have a battery and generator and are plugged in and it still doesn't work? You will find a fuse on the control panel in the compartment accessible from the outside of your unit. Check/replace the faulty fuse and you will be back in business.

I hope this helps you and hubby with your Norcold Frig. Thanks for your interest in FixYa.com. If you found this solution to be helpful, please vote. Thanks

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