Question about Dometic Rooftop RV Air Conditioner
From what you are saying there must be two separate relays that run the fan. The switch or thermostat must run two separate wire from it to something. one wire would be the "on" and the other the "auto". These would have to go to separate relays and the relay for the "auto" is bad...the realys may be on a circuit board and the whole board may need to be replaced.
Best thing to do is to follow the power for each position and find out where the power is stopsing in the auto position and why it is not turning on the fan. It may take a bit of detective work to actually trace down the problem. It could be as easy as a loose connection...
Posted on Sep 29, 2010
If the A/C compressor relay is not starting the compressor then the fan will not run. The compressor should kick on, then the fan will start blowing. But it sounds like you have a problem with the compressor, starting relay, or the starting capacitor. You can check voltage on the compressor side of the relay to see if you are getting power to the compressor. If you are getting power to the compressor then check continuity on the capacitor. Be sure to unplug the unit before testing capacitor. If you have continuity on the capacitor then the capacitor is good. I don't believe this system has a low pressure switch. So this would mean that your compressor is bad.
Posted on Sep 28, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jun 28, 2017 | Bryant Heating & Cooling
Nov 01, 2015 | Heating & Cooling
Sep 24, 2014 | Heating & Cooling
Aug 18, 2014 | Heating & Cooling
Apr 14, 2014 | Coleman Home Electric Furnace Eb15b/Eb15d
Jul 26, 2009 | Heating & Cooling
Jul 10, 2009 | Heating & Cooling
Apr 26, 2009 | Friedrich QuietMaster Electronic SS12J30D...
Apr 07, 2009 | Heating & Cooling
Jul 23, 2008 | Heating & Cooling
251 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: