BAC Forum
General Boards => Technical Support => Topic started by: Trige Gleim on November 17, 2019, 04:21:02 PM
-
Our 2007 Beaver Contessa has 3 roof A/C's (heat pumps). Just recently the rear (bedroom) unit has stopped working. The front and middle units are working. We're currently hooked up to a 50 amp pedestal. I'm no electrician but I know enough to check the breaker box and the RR A/C breaker is not tripped. I started the generator to check the RR A/C unit and it ran perfectly. Once I turned off the generator, the RR A/C unit shut off. Please provide any suggestions on what I should check next. Thank you!
-
Trige, Sounds like only 1/2 of your transfer relay is working. On generator, both legs are transferring power into the coach. Further proof on shore power check to see what else may not be working. Fred
-
Trige
Just some information to add. Keep in mind that the #3 A/C will not operate when the clothes washer is operating. This prevents overloading the number 2 leg which they are both on, at least on our coach (2008 Beaver marquis). That is why there is a priority given to the washer.
This may be of some help in analyzing your electrical situation.
-
Thank you Fred and Larry. I will use your advice towards figuring out the problem. Fred, I sent you a PM.
-
Trige, our 07 Contessa is wired with the center and front ac on different legs. If both are working while on 50 amp service you transfer switch would seem to be working. Another weird ac problem hit us this summer with our external surge protector female connector made inconsistent connection with our power cord . Once I removed the surge protector everything came back on line
-
The culprit ended up being the Automatic Transfer Switch. Thanks to all for the input and especially to Fred for the phone call walking me through the process.