Can anyone tell me how to bypass the 6 pin connector on the eyebrow board on a Dometic Dm2852 to make it run on ac power. I am helping a buddy that just bought an rv and he was told that it will only run on lpg. He took the board off when trying to trouble shoot it and the board got thrown away. I want to test the unit before spending money on a new board. I tested the wires and we have power going to the board. I don't think the 12 volt is hooked up to the fridge as well.

The board "runs" on 12VDC, whether on propane or 120 VAC.No 12VDC and it will NOT work on either heat source.

OP you said you have power to board but also said it got thrown away. Which is it?You could apply power directly to the 120-volt element. It should start cooling the refer if it is good.Good chance that the 120-volt relay on board has or had failed.

Disconnect and the 120v cord from the boardDisconnect the 120v heating element leads from the board, connect heater leads to cord, plug cord into the fridge compartment outlet ,It is now direct wired and will cool to maximize capability, will never cycle off as long as trailer has 120v

enblethen wrote:OP you said you have power to board but also said it got thrown away. Which is it?You could apply power directly to the 120-volt element. It should start cooling the refer if it is good.Good chance that the 120-volt relay on board has or had failed.I tested the plug that plugs into the eyebrow board, that is how i know there is power coming from the bottom board to the top, the bottom board is new. from what i can tell the top board is a simple two button board with just two led lights. There should be a way to jump the top plug to make the unit come on.

wolfe10 wrote:The board "runs" on 12VDC, whether on propane or 120 VAC.No 12VDC and it will NOT work on either heat source.copy, I will make sure to hook up 12 vdc to the back of the fridge. I read that in the manual but when i tested the plug it had dc voltage on it so i figured there many have been a converter somewhere

Dometic Dm2852 eyebrow board bypass info needed

etki84
Explorer
Aug 28, 2023
enblethen wrote:
OP you said you have power to board but also said it got thrown away. Which is it?
You could apply power directly to the 120-volt element. It should start cooling the refer if it is good.
Good chance that the 120-volt relay on board has or had failed.

I tested the plug that plugs into the eyebrow board, that is how i know there is power coming from the bottom board to the top, the bottom board is new. from what i can tell the top board is a simple two button board with just two led lights. There should be a way to jump the top plug to make the unit come on.
MrWizard
Moderator
Aug 28, 2023
Disconnect and the 120v cord from the board
Disconnect the 120v heating element leads from the board, connect heater leads to cord, plug cord into the fridge compartment outlet ,
It is now direct wired and will cool to maximize capability, will never cycle off as long as trailer has 120v
enblethen
Nomad
Aug 28, 2023
OP you said you have power to board but also said it got thrown away. Which is it?
You could apply power directly to the 120-volt element. It should start cooling the refer if it is good.
Good chance that the 120-volt relay on board has or had failed.
wolfe10
Explorer
Aug 28, 2023
The board "runs" on 12VDC, whether on propane or 120 VAC.

No 12VDC and it will NOT work on either heat source.

Forum Discussion

Dometic Dm2852 eyebrow board bypass info needed

About Technical Issues

Related Content

Dometic Servel RGE400 fridge too cold

Dometic DM2852

Dometic DM2852 Not working on AC

Dometic fridge DM2852 No power

Dometic 2-Way fridge repair issues