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Old 05-20-2019, 10:58 PM   #1
Junior Member
 
Brand: Thor Motor Coach
Model: 24 WS Fourwinds
State: Washington
Posts: 5
THOR #13568
Everything turned off for no reason!!

We have a 24' Class C FourWinds motorhome on a Mercedes chassis. We were dry camping for 3 days with no problem. On the 4th day we drove partway home, parked for the night, batteries were fully charged, turned the water pump switch back on, turned on a faucet to get water and when the water pump came on it tripped something and EVERYTHING shut off....power AND propane shut off. There was no obvious reason for this total shut down. All we found was a blinking red light in the coach by the bed (the carbon monoxide detector??) and then also found in one of the lower outside storage compartments where the "dual motor synchronous velocity slide controller" was blinking also....showing a "hall power ground fault". ANYONE know what is going on????

We were able to drive home the next day and when we tried the water pump again after we got safely home, it worked just fine and no more tripping and system shut downs. We don't want this to happen again randomly on the road.
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Old 05-21-2019, 12:08 AM   #2
lug
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Brand: Thor Motor Coach
Model: ACE 32.1
State: Michigan
Posts: 83
THOR #11442
Put a multimeter on the house batteries. Anything less than 12.65 (12.7) volts is not fully charged. Everything you described says low voltage.
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Old 05-21-2019, 12:28 AM   #3
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Brand: Thor Motor Coach
Model: THOR Chateua 35SF
State: Georgia
Posts: 3,685
THOR #11130
I would look for a loose connection somewhere...start with the battery terminals first, then the power input to the fuse panel distribution. Sounds like something is wiggling around and momentarily making connection.
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