I've known many of you on this list for a long time. I have a MH problem which is general in nature so I thought I'd try it on you first. I'm stumped on this one and don't want to pay the dealer to be stumped at $70 an hour. Four Winds Siesta class C 2005 vintage 5500 miles.
Norcold Refrigerator, two door model N611 works fine when set to propane setting using DC current. If I switch the refrigerator to Auto setting to use AC it blows the GFI where I am plugged in. Tried two different GFI circuits to be sure that circuit wasn't goofy.
Diagnostics I have tried. Tested the 3 prong AC outlet behind the refrig where it plugs in. Two green lights on the tester meaning it is properly wired. No ground problem indicated.
Checked the connectors on the back of the refrigerator that enter the circuit board. All are seated. Removed and reinserted each.
Tried to follow the ground wire it disappears through a caulked hole below the interior horizontal wall behind the refrigerator and above the wheel arch. Reemerges behind the controller panel and enters the wiring harness. No obvious crimp etc.
All other AC appliances seem to work (don't trip the GFI in the barn) this includes microwave, TV, antenna amplifier. I even tried plugging the little AC vacuum into the AC outlets (after testing each with the tester).
History:
Had Kwickee step motor replaced last Fall, no obvious problems under there.
Replaced both house batteries last Fall due to Kwickee step motor problem draining them repeatedly.
Replaced DC Contactor (Isolator solenoid) under the hood which had corroded and was no longer making adequate pass through of power which contributed to the battery replacement issue.
Last thing touched was the DC contactor, went and checked; it is wired correctly (the same) as original and matches the diagram that came with the part.
Any ideas what to check next? Everything else worked this week, I just set the refrig to gas and had no problems while plugged in to shoreline power.
Tony
Trail Lite 235S Gone; Four Winds Siesta
Pennsylvania
Me, the wife and the boys (2 Border Collies)