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Old 03-02-2017, 06:08 PM   #1
Junior Member
Join Date: Mar 2015
Location: VA
Posts: 6
Duo Therm Thermostat lost power.

1998 Holiday Rambler 'A' 40 WDS

Yesterday a wind storm ripped the shroud off my forward duo therm a/c.
Picked up the pieces covering the ground and covered the aging roof unit with a tarp. All was well, considering the damage elsewhere in the area.

Went to heat up the coach and noticed the thermostat power was gone. No breakers tripped, the furnace 15A fuse was fine, cant find any thermostat light fuse, propane works for the water heater but no furnace to heat the inside. Prior to the wind storm the furnace worked fine.

On the phone, the local RV repair shop says it's possible, that when the shroud ripped off it cut some wires. Would there be a fuse for the thermostat unit?

Can anyone offer some other ideas?

Grateful for your advice and my 2 radiant heaters...
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Old 03-02-2017, 08:59 PM   #2
Join Date: Mar 2013
Posts: 44
We just replaced a Penguin on our Newmar. If I recall there was a cable coming from the duo therm control to the primary a/c used to power up the duo therm control. Your repair shop might be correct. Most of the connections are inside the plenum on the ac unit itself . Kind of a pain to split the plenum on the a/c . Its possible that strain on the cabling made its way to the connections and cut power to the control unit. There probabaly a 12 v fuse for a/c control on the coach fuse panel. I know this because when I was connecting up the new a/c I blew this fuse and the control power was lost. Good luck !
rdurdel is offline   Reply With Quote

power, thermostat

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