2020 jayflight slx 287 bhsw AC fan operates continuously

Rvmate

Member
Joined
Jul 29, 2021
Messages
18
Location
Avondale
My rig has a Dometic soft touch thermostat. When the fan is selected to Auto, the compressor recycles as per the temp setting but the blower works constantly all the time. Anyone else experience this or has suggestions.
 
Following. I have the opposite problem. Set fan to high or low, and the fan cycles with the compressor. Started looking into it with the thermostat. Only has 3 wires, not enough to control all functions independently. Thermostat is wired to a small controller in the ac unit, which is where I suspect the issue is. My ac unit has no identifying tags visible from inside the unit, guess I need to get on the roof and look. Have not found a lot online yet, but still need the model to search further. My thermostat is cool/furnace only, no heat pump or strip heater.
 
I’m guessing the control box (printed circuit board) inside the AC unit in both are defective.
 
Buy new, remove cover, unscrew control bracket, pull plugs off, replace plugs, screw bracket in place, replace cover, get a beer and relax.
 

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