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Old 10-16-2013, 01:57 PM   #1
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Join Date: Apr 2013
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34RLSA Dometic CCC2 Thermostat

While on vacation in Alabama, the Zone 2 (bedroom air conditioner) vanished from the thermostat rendering the bedroom air conditioner inop. I talked to Cedar Creek and Dometic, but their suggestions and procedures haven't fixed the issue. Has anybody else run into this problem?

-Mark Munger

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Old 10-16-2013, 02:59 PM   #2
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I have that thermostat (and two zones) and haven't had that problem.

Can I assume that they had you do the two-button System Reset? If that didn't work, it sounds like the control cable for the unit in the second zone has come unplugged, or a dip switch in the unit has been changed somehow (vibration).

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Old 10-16-2013, 03:58 PM   #3
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The Dometic Comfort Control ll thermostat on my new CC would short cycle the A/C's. AC would come on, run for less than two minutes, shut off for the two minutes delay then turn AC back on. As if the temp., difference was way less than 1 degree. I counted 13 cycles in one hour. I got my dealer to send me a new thermostat, problem solved. These thermostats don't seem to be of very good quality. You can set the temp., difference 1 or 2 degrees for heat but NO adjustment in air conditioner mode. My AC's still cycle too often based on the previous two 5th. wheels I had that had single thermostats for each of the two Dometic AC's.

Wish you could use a good Honeywell thermostat but NO you have to use the overpriced Dometic made for the Dometic dual AC systems.
2014 Cedar Creek 34 RLSA-7
2015 Chevy Silverado 3500HD LTZ SRW

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