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Old 10-14-2015, 09:25 AM   #1
2 Rivet Member
2012 30' International
Cape Coral , Florida
Join Date: Nov 2012
Posts: 72
Domestic A/C,heat control box

We arrived home yesterday after a long trip and hooked up our 2012 International 30 to our 50amp shore power to prepare for clean up. The A/C (both units ran and brought the temperature to the set 78 degrees. We left the trailer overnight and I noticed by late morning with the outside temperature reaching 85 deg that the A/C had not started. I looked at the domestic control and it is dead and does not respond to any attempts to light up/display. The light which I believe to be on the same circuit as the control box (bedroom/shower lights) all work fine. Any suggestions for further checking?

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Old 10-15-2015, 06:04 PM   #2
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A W Warn's Avatar

2000 25' Safari
1999 34' Excella
Davidson County, NC , Highlands County, FL
Join Date: Aug 2006
Posts: 2,049
Last year I had a similar issue. One of the 12v breakers had tripped.
I suggest you should check continuity of the 12v fuses/breakers. If they are good, check the 12 power supply wire and ground wire at each roof top unit.
2014 Silverado 1500 5.3L maximum trailering package (yes, I'm towing the 34')
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