Worrisome Noise

[Bobb.25]

I am not sure if this questions is pertinent to only my particular brand of RV ( 2003 Rexhall Rexair, 35 ft. , gasser ), or is generic. When camped, and connected to shore power, you can hear a fairly loud noise, which I can best describe as click-clack. It reminds me of a contactor picking up and then releasing. It seems to originate under the dash somewhere near the drivers position. I can probably tolerate the noise, but the concern is that it is announcing an impending failure, that I should be heading off with a repair. Are there any ideas that I should pursue ? Bob

[lpkirby]

I can hear my automatic transfer switch make a noise when I hook up and occasionally while inside I hear it make a hum to a little click every now and then. Not sure if this is normal but it is a brand new Surge guard ATS. Good Luck

[MartinP]

I beleive this is the auto power transfer/isolation relay. I'm not sure if it should cycle on and off when connected to shore power, it may depend on the state of charge of the batteries. Do a search on the internet. I did find the electrical schematic for the power center for my Rexhall. The other option is to call Rexhall and request a basic owners manual as this also has the schematic.

Martin

[MartinP]

Bob,
The unit may have been produced by Intelli-Power. See if you can find the power center, it will have a name and model number, then do a search for the operation/ tech data on the internet. Send me a PM me if you like and I will see what I can find.

Martin.