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Old 03-21-2013, 10:08 PM   #1
Junior Member
Join Date: Mar 2013
Posts: 1
Help! 2010 Phaeton AC problems

I have had repeated electrical problems with my Phaeton. The RV Comfort thermostat that controls the 3 AC units and heaters has never worked properly.
It always resets to 00 and turns off/on on it's own accord.
I have replaced the thermostat for the third time, replaced two noise filters, swapped out the main AC control panel from unit 1 with unit 2 control panel.
Again and again it defaults to 00 and will not respond.

Not sure if it is related, but I had battery charging problems wwith my Xantec inverter that cooked my batteries. After sending it back to Xantec, the claimed it was working fine.

I have repeatedly done all the factory resets on the thermostat, disconnected the 12 Volt and reset, disconnected 110 and reset. Replaced the 110 circuit breaker. Upgraded the 20 amp breaker, replaced the 12 volt fuse.


Any one have an idea?
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Old 03-22-2013, 03:05 AM   #2
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Join Date: Nov 2009
Posts: 2,043
00 is definitely a communication error. On many Fleetwood coaches I've seen a plug-in choke/RFI filter that plugs directly into the thermostat, then your wiring plugs into the filter. Others seem to have had success by changing the control board in the primary AC unit. Your mileage may vary...

However.. it appears that 00 that you are seeing appears often.. here are some other links/threads you may be able to ask and follow up upon:

RV Comfort Control.ZC - Systems and appliances - FMCA Motorhome Forums

Thermostat Problem ?
94-Newmar Kountry Star 40-KSDP
Spartan/Cummins 8.3C-300HP/Allison 3060 WTEC-II/25yr RV Tech RVIA Certified/Onan-Cummins Certified
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