Frig Problems

[FR8TFLYER]

Need a little help on my refrigerator. I have a 303 with a Dometic frig. I’m hooked up to shore power with the frig in auto. I think it is running only on LP as both the auto and LP LED is illuminated.

I tried to force it to operate on electrical by shutting the LP off and I get the flashing LP/temperature indication and it slowly starts warming up. Start the LP back up and it starts to cool.

I checked the fuse and it’s ok, can’t find the power cord to make sure its plugged in. Turned it off for a couple minutes and restarted. No luck...

Appreciate any suggestions?

Thanks.

[242 checkmate]

Hi: If you have the Dometic four door refrigerator the plug is outside behind the bottom vent cover. Look to the right you should see a plug for the refrigerator cord. Also do you have any breakers or GFI tripped? Iam not sure if you mean circuit breaker for the word fuse.

[FR8TFLYER]

Found the plug and it was plugged in and the outlet works. Circuit breaker was not tripped and only could find 1 GFCI outlet.

Any other ideas out there?

[Hokensalem]

Probably the main board. They are junk. There's a lot better board out there after market, check Amazon.

[FR8TFLYER]

Thanks. Is the board easy to reach? Any lead on what board I need?

[Calbar]

Thanks. Is the board easy to reach? Any lead on what board I need?

Before you buy a new board there should be some fuses for the fridge. From page 18 of the manual there are 2 fuses on the circuit board, a 3A and 5A. I would pull those and check with an ohmmeter to see if they are good or not. Might just be a blown fuse. Not sure how to access the board though as I have never had the honour of doing that yet.

Rob

[FR8TFLYER]

Rob
Probably a dumb question but if the fuses were bad would I even be able to use the frig on LP?

This forum is a great wealth of knowledge!

[Calbar]

Rob
Probably a dumb question but if the fuses were bad would I even be able to use the frig on LP?

This forum is a great wealth of knowledge!

There are 2 circuits, one 12V and one 120V from what I can see in the schematic. If one of the 120V fuses are blown the fridge would still work on 12V. In the schematic there is another fuse besides the ones I was mentioning that is in the 12V line. Hate to see you change the board if one of the 120V fuses is just the culprit.

Rob

[JColeman]

Before you take anything apart, try turning the fridge off for a few minutes and then on again in electric mode.

[FR8TFLYER]

Checked all fuses a and they are good, powered down and still nothing. Just about has to be the circuit board.