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jim427's avatar
jim427
Explorer
Apr 21, 2019

1999 Fleetwood Discovery 38 ft. battery relays

Recently I noticed a "buzzing" in the back of the coach when it is parked, on shore power, and both battery relays are in the on position. I finally found it in the battery compartment, and it was the...
Class A
wolfe10's avatar
wolfe10
Explorer
Apr 21, 2019
Check voltage to the small signal terminal (s). If 12+ VDC, the relay is bad. If one small signal terminal it will be the positive (with ground through the relay's body). If two, one will be the positive, one the ground/negative.

You can also use a small jumper wire from the 12+VDC lug to the POSITIVE signal terminal after removing the wire to the positive signal terminal so you don't back-feed that circuit.

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