Question about Dometic Rooftop RV Air Conditioner
We have a 3003 Fleetwood Excursion with a 2-zone roof top airco. Zone 1 is working but we cannot get zone 1 anymore. Instead it shows an error for zone 3, which we do not have.
You will need to take the inside cover down on the front air conditioner. There is a control box mounted there, open the control box and you should see many dip switches on the face of the board. Make sure that Zone 1 and Zone 2 are selected (furnace as well if your furnace is fed through this thermostat). After making sure that the switches are set, turn off the thermostat and hold down the mode and zone buttons at the same time, turn the tstat back on. When EE appears on the face, release the buttons and see if everything works. If not, then I would say that you have a bad control unit in the air conditioner.
Posted on Jun 30, 2009
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Posted on Jan 02, 2017
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