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elhajj33's avatar
elhajj33
Explorer
Oct 11, 2015

Help! First problem with RV: loud buzzing in bedroom

So...picked up our 09 Fleetwood excursion 40x and am presently at a campground. There's a loud buzzing in the master bedroom. It's not the breaker box (if I put my ear at the breaker and go up and t...
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wolfe10's avatar
wolfe10
Explorer
Oct 11, 2015
ATS is the likely suspect.

Turn off the main 120 VAC breaker in your coach 120 VAC breaker box. If it continues to buzz, you know it is in your ATS, as no power is going to anything else in the coach. This assumes you have eliminated your inverter/charger as the noise source. If not, turn it off so it does not invert when you turn off the main breaker.

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