| House battery gremlin(s)? [message #362934] |
Sun, 21 March 2021 20:49  |
boybach
Messages: 566
Registered: December 2020
Location: Vancouver Island
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Senior Member |
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I picked up my new-to-me 1977 palm beach coach over the weekend and drove it about 500kms home to Vancouver Island.
When we tested the house circuits before we left, the monitor panel showed a voltage of a couple of volts or so and testing one of the house lights resulted in a barely visible glow. The engine battery was good and strong but we assumed the house battery needed a good charge. The coach had been stored outside over winter.
After driving about 400km we parked up and tried the house systems again, but the house battery hadn't come up at all, may have even been worse.
Next morning we pulled it out from behind the Onan and checked the cells. Cells were very low so topped her off with distilled water and ran the engine for about 5 mins. Next, I flipped the battery boost switch and tried to get the generator running using the starter by the coach door. The genset fired right up and the 110 stuff all seemed to work fine.
After we shut down the Onan, (which ran for about 5 mins total) the panel monitor showed the battery voltage up above 12v and indeed we could crank over and start the generator and use the house lights too. I thought it was weird that the battery would come up so quickly but other than that, everything seemed fine.
So we continued driving for about 100km and checked the system again. Nothing worked again and even the previously dim house lights couldn't light up. In that state of affairs we couldn't crank the genny and the monitor panel gauge hardly moved, couldn't even register 1/2 volt.
Not sure where to start, plan ATM is to take the house battery in and have it checked.
Any suggestions on what/how to check appreciated
all the best
Larry
Larry - Victoria BC -
1977 ex-Palm Beach "Ol' Leaky" 40,000 miles, PO said everything working but forgot the word NOT. Atwood helium fridge, water heater & furnace. SS exhaust system, Onan, Iota Converter, R134A, New fuel lines & heat exchange hoses
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