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My dometec refrigerator shows a short in the 12 v system. it…

My dometec refrigerator shows...

My dometec refrigerator shows a short in the 12 v system. it still works fine on propane and 110 v

Mechanic's Assistant: I'll do all I can to help. Can you tell me more about what's going on?

When parked with everything off and disconnected my battery draines overnight. chasing the electrical circuits it showed a ohm draw in the refrigerator circuit. chasing that down it is internal in the refrigerator. fridge works on propane and 110.

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Answered in 21 minutes by:
7/21/2020
RV Mechanic: Robert, RV Mechanic replied 2 years ago
Robert
Robert, RV Mechanic
Category: RV
Satisfied Customers: 24,306
Experience: 23 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.
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Hi, I'm Robert. Welcome to JustAnswer. I'm reviewing your question now and will post back with your reply momentarily.

What is the model of the Dometic?

Robert

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Customer reply replied 2 years ago
Model 2652
RV Mechanic: Robert, RV Mechanic replied 2 years ago

OK

Give me several mins to look at some diagrams.

Robert

Do you have a RM or DM model, the DM model is the newer style.

Robert

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Customer reply replied 2 years ago
RM
RV Mechanic: Robert, RV Mechanic replied 2 years ago

OK
So that model has a climate control switch and you need to make sure it is OFF. Even if the fridge is turned off if that switch is ON it can still pull voltage from the batteries, I suspect it may be on showing the draw.

Below is a service manual for you page 6 shows location and the manual gets into details on that switch.

Robert

https://fourwheelcampers.com/NewDometicRefrigeratorManual.pdf

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Customer reply replied 2 years ago
That seems to be the problem so now what is the purpose of the climate control switch.?
RV Mechanic: Robert, RV Mechanic replied 2 years ago

During the summer months of high temperatures and humidity, the metal frame between the freezer and fresh food compartments may have water droplets forming. The number of water droplets will increase if the vehicle isn’t air conditioned during these months. Some refrigerators come standard with a 12 volt (DC) climate control that will evaporate the water droplets when they form.

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Customer reply replied 2 years ago
Okay so is that an automatic function that's dependent upon temperature and humidity probably.
RV Mechanic: Robert, RV Mechanic replied 2 years ago

When the switch is ON.

Robert

Robert
Robert, RV Mechanic
Category: RV
Satisfied Customers: 24,306
Experience: 23 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.
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Robert
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