Question about Dometic Rooftop RV Air Conditioner
Fan runs in all 3 speeds, control display cycles thru all modes. Room temp display reads "LO" (whatever that means). If I close the compressor relay on the circuit board manually the compressor runs and cools.
I've thought about removing electronic control and replacing with manual switches and relay's. Anybody ever done this?
I have a clicking in the fan. It appears to be the squirrel cage fan touching the side of the cage. It is worse on high fan speed and very irriating. What can I do?
Posted on Jul 27, 2010
I would check to make sure that the control is sending the "cool" signal to the control unit. LO on the room temp display usually means that the fan speed is set to low. Is LO and Auto showing on the display at the same time. Try resetting the thermostat first. Hold down the Mode and Zone buttons with the tstat off. While holding them down, turn the tstat back on and hold the buttons down until FF appears on the screen. Release the buttons and try the AC.
If this does not work, on the control board is a freeze control switch plug (blue usually). Try unplugging this unit and insert a small jumper wire. If the Compressor comes on and runs then you have a bad freeze control switch. If not, then you should replace the control board.
Hope this helps,
Posted on Jul 05, 2009
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Posted on Jan 02, 2017
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