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Thread: Parasite draw
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Old 07-20-2021, 11:45 PM   #9
16ACE27
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Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,117
THOR #7035
Quote:
Originally Posted by exit55 View Post
Well did some more work on it today. When I checked, the chassis battery was at 1.4 volts. Of course would not crank. Checked voltage on coach batteries at trombetta. Was 13.4 volts so batteries are separating.

Put charger on chassis and it imediately went to 10.4 volts, then higher to 12.4 volts. Tried to crank but not enough. voltage at trombetta coach post was still over 13 volts. Had to leave so removed charger. will try again tomorrow.

Was finally able to get into fuse box. Will remove one fuse at a time to determine where my parasite. is. main wires are easily disconnected at fuse box. Was also able to get wiring schematic from Thor. Wires from the POS post on Chassis battery go to trombetta and fuse box.

Didn't get it cranked so still have to check ouput of alternator.
1.4 volts after 2 days sounds like a bad battery to me. Especially if only at 12.4 volts with a charger connected.
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