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Old 09-15-2014, 07:44 AM   #1
Senior Member
Join Date: Jun 2011
Location: Milford, MA
Posts: 438
Dometic Duo-Therm Coolcat Heatpump will not heat or cool

I've posted about something similar before. On the last trip discovered that the fan will run in the unit but it will neither cool nor heat.

I have the duo therm Heatpump service manual in PDF and there seem to be a few things I can chase down myself before bringing it in for a service call. I'm going to begin with the fuse in the control board/box. Will keep this threat updated with what I find.

Very interested in hearing from anyone who did have service in their coolcat - what were the symptoms they were experiencing? What was the service dept diagnosis? And what did they end up doing to repair at approx what cost?

Thanks and cheers.


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2011 A-122
rawlus is offline   Reply With Quote
Old 09-15-2014, 06:41 PM   #2
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Join Date: Mar 2011
Location: Ottawa Ontario Canada
Posts: 799
well .. i would go for the simple and easy .. and have your thermostat looked at or replaced ..

2008 Nissan Frontier 4x4
2011 Rockwood A122
D-mo is offline   Reply With Quote

cat, dometic, pump

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