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Old 07-04-2015, 01:21 PM   #1
1 Rivet Member
2015 30' Classic
Mt Pleasant , South Carolina
Join Date: Apr 2015
Posts: 19
Rear A/C Temp Sensor

I could use some advice concerning what appears to be a faulty temp sensor in rear bedroom of a 2015 Classic. On the way back from CA to SC I began to notice rear A/C fan would come on for a few seconds, no compressor on, the shut down. This would happen several times but it would never function correctly as the front A/C would. Operating on a 10 button Dometic thermostat. I had a mobile tech in NC check it out and his diagnosis was a faulty rear temp sensor. Several things led him to this conclusion, E5 error code which I told him about that had shown up once and when you pressed the inside temp for rear zone it would always read 55 degrees. The tech suggested not to splice a new sensor but to make a new run up to the control board of the rear A/C. Dometic says it is ok to splice. Domestic also give you the alternative of disconnecting rear sensor and making a few dip switch adjustments and the rear A/C can run of the front sensor. Any thoughts as to either alternative?

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Old 07-12-2015, 08:08 PM   #2
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2011 34' Classic
Westchester Cty.NY , / Miami FL
Join Date: Jul 2007
Posts: 3,122
moisture in the "phone jack' type connectors can cause an error in the readings of the sensors. (common when humid) please do a search for the temp sensor error posts on the forum.
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