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Randall
Randall, RVIA Certification
Category: RV
Satisfied Customers: 10329
Experience:  RVDA/RVIA Master Certified Technician with many years experience.
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My Norcold N510 isn't cooling on AC power, It cools fine on

Customer Question

My Norcold N510 isn't cooling on AC power
JA: Have you checked the Freon level?
Customer: It cools fine on gas
JA: What is the model/year of your RV?
Customer: 2004
JA: Are you fixing your RV yourself? What have you tried so far?
Customer: Haven't checked anything so far
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 2 months ago.
Category: RV
Expert:  Randall replied 2 months ago.

Start by checking the AC fuse on the control board. If that is good, then use a meter to check the ohms reading on the heating element. I will get you a copy of the Norcold Service Manual for you when I get to my computer in a few.

Expert:  Randall replied 2 months ago.

Attached is a link to the Norcold Manual for this model. Print it out so you have it. See the section on testing the heating element. It should ohm out about 61 ohms between the leads when disconnected. No polarity to worry about. Then take a reading between each lead and the gound on the flue. You don't want to see any reading there. If this checks out, take an AC volts reading AT the place where the AC element hooks up to the board with the fridge on. You should see about 120 VAC there. If not, check and be sure the plug has good voltage and the AC fuse on the board is good. Please get back to me if you need more later as all follow ups are included in our fee.