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My Norcold fridge is starting to power off and on on its own.

Customer Question
When i open the door...
My Norcold fridge is starting to power off and on on its own. When i open the door the inside light flickers as well.
Submitted: 2 years ago.Category: RV
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Answered in 2 minutes by:
5/5/2015
RV Mechanic: Michael Reush, RV Technician replied 2 years ago
Michael Reush
Michael Reush, RV Technician
Category: RV
Satisfied Customers: 3,249
Experience: Serving the rv industry since 1977
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Hi, please give me the model number of the refrigerator, thank
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Customer reply replied 2 years ago

Norcold N811 I believe

RV Mechanic: Michael Reush, RV Technician replied 2 years ago
Thanks, ***** ***** flickering is interesting, we need to determine whether it is the power to the refrigerator or the power board that is causing this problem. First I would go to the back of the refrigerator, open the door, and make sure the connections to the refer from the coach are good, then take the cover off of the control module, (plastic box where all of the wire go) and unplug, and replug all of the wires, and connectors. When this is happening, I need you to take your voltmeter to the back of the refrigerator, and test at the connection to the refer, then the 12volt power on the board, when you do the test, unplug the 110vac at the plug , rear of refer. thanks
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Customer reply replied 2 years ago

Ok. I won't be back to it until later this afternoon

RV Mechanic: Michael Reush, RV Technician replied 2 years ago
Thanks, ***** ***** to me when your ready, Michael
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Customer reply replied 2 years ago

ok thanks

RV Mechanic: Michael Reush, RV Technician replied 2 years ago
Please leave this unanswered until you are ready, each time you respond, I must respond also, thanks
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Customer reply replied 2 years ago

Do I need the 110 plugged in to get a reading? The way I'm reading your troubleshoot is to unplug.

RV Mechanic: Michael Reush, RV Technician replied 2 years ago
Hi, unplug the 120v ac, and test the 12volt side, run it on gas while your testing, It will give you a reading, I dont want you to get bit by the ac.
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Customer reply replied 2 years ago

Ok, in order to do so I will need to go refill my propane. So you want me to negative voltmeter lead to ground and positive to 12v DC "blade" on circuit board?

RV Mechanic: Michael Reush, RV Technician replied 2 years ago
Your are correct, thanks
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Customer reply replied 2 years ago

I actually did so with the 110 plugged in and got a reading of 0.145. Does that help at all?

RV Mechanic: Michael Reush, RV Technician replied 2 years ago
You can do this with it plugged in, stay away from the glass fuse on the board it is ac, there is a 5 amp fuse on the board, I do want you to test voltage. That reading is 'funny' should read 12 + volts, make sure your meter is set to dc. thanks Did you remove the cover from the control module?
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Customer reply replied 2 years ago

Yes I did. Unfortunately I'm not seeing a DC setting on voltmeter and the screen did say AC on the ˜ V setting. I borrowed meter from neighbor. Is there a setting that reads DC that doesn't necessarily SAY DC?

RV Mechanic: Michael Reush, RV Technician replied 2 years ago
It should have a dc setting if it is an ac dc meter, it could be that it only ac meter
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Customer reply replied 2 years ago

It looks pretty generic. Not even a brand name. Sorry to waste your time. I'll go see if walmart or radio shack up the street has one. Ill be in touch

RV Mechanic: Michael Reush, RV Technician replied 2 years ago
Thanks they dont have to be expensive. Look forward to hearing back from you.............Take a deep breath.........Michael
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Customer reply replied 2 years ago

Just got back and hear something clicking randomly on circuit board. little black cube I think. Relay possibly? -04.40 is the DC volts if I touch one lead to fuse and the other ground.

RV Mechanic: Michael Reush, RV Technician replied 2 years ago
Yes thats a relay on the board...................hmmmmmmmmm go to the battery, and ck voltage, this will give us a baseline. and is your probe on the flat plastic fuse? And is the refer doing its 'funny thing' where the light is flashing, and the refer shutting off?
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