Question about Dometic Refrigerators
Your model # NDR1062 indicates a 2 Way refrigerator, the presence of only 2 fuses confirms this.
Your fridge, though it it can use 120vac, also requires 12vdc to operate. At the back of the fridge (access through vent), there should be a terminal block where the DC connection is made. Using a multimeter, measure the voltage across the terminal block. Follow the ground wire from the block over to the common ground point, and measure from +12vdc to the ground point. You voltage should be the same. If you are not getting your 12vdc here, then check your coach fuse panel for a blown DC fuse for the fridge.
If you are getting your 12vdc at the terminal block, measure terminal J4 on the control board, to ground. You should have the same voltage as there is at the terminal block. Don't touch J5, that may have 120vac on it. If you don't have 12vdc at J4, look for missing / damaged wire that connects to J4 from the posititve connection at terminal block.
If you do have 12vdc at J4, check both sides of the DC fuse (3Amp). You should have 12vdc on both sides with respect to ground.
Grounding is crucial, esp. at the tie point. There must not be any corrosion or play in the connections.
Posted on Jul 18, 2010
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Posted on Jan 02, 2017
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