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Old 05-28-2009, 11:18 PM   #1
1 Rivet Member
1978 25' Tradewind
Walnut Creek , California
Join Date: Mar 2009
Posts: 12
Plugged in but only partial electricity

Hello. I have 1978 Tradewind and I am leaving for a trip in the morning. Murphy's Law is in place as I am just now experiencing an electrical issue.

Please help if you can.

Despite being plugged in, all of the lights are dim, the water pump is barely turning and the control panel charging light is NOT illuminated. What is odd is that the refrigerator is working on the electrical setting and if I plug something in to one of the interior sockets, it will work as well. Neither of these (sockets or refrigerator) work when the trailer is unplugged so it means some electricity is getting through. The only thing that has happened over the last week which I can site is that we accidentally ran over the charging cord when it was snaked through the garage while charging the trailer. I tested the battery and its volts are extremely low. It is at 7 volts when it should be around 25. Could the battery be fried and be inhibiting electricity to the remainder of the trailer? Any other ideas? Thank you in advance.

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Old 05-28-2009, 11:24 PM   #2
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1964 26' Overlander
1978 Argosy Minuet 6.0 Metre
Anna , Illinois
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Plugged in but only partial electricity

It sounds like the power converter (Univolt) is either unplugged, a circuit breaker is tripped (the circuit that the Univolt is on), or the power converter (Univolt) has ceased to operate. From your description, it sounds like your water pump, etc. are trying to operate on the limited voltage available from your weakened battery.

The lights and water pump are both strictly 12-vot DC. Your refrigerator and electrical outlets utilize 120-volt AC (unless your refrigerator happens to be a 3-way replacement) -- these will work when plugged into shorepower even if the power converter (Univolt) is not operational and the battery is low or not in place.


Kevin D. Allen
WBCCI (Lifetime Member)/VAC/Free Wheelers #6359
AIR #827
1964 Overlander International/1999 GMC K2500 Suburban (7400 VORTEC/4.11 Differentials)
1978 Argosy Minuet 6.0 Metre/1975 Cadillac Eldorado Convertible (8.2 Liter V8/2.70 Final Drive)
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Old 05-28-2009, 11:49 PM   #3
1 Rivet Member
1978 25' Tradewind
Walnut Creek , California
Join Date: Mar 2009
Posts: 12
Solved, thanks to Overlander64

Overlander64 is a stud. It was a tripped fuse. My newbee ignorance required a point in the right direction and it was the breaker panel. There was a 15amp fuse tripped. Flipped the switch and I am back up and running. I am hoping it does not repeat. I did plug a laptop into one of the sockets yesterday. Perhaps that was the issue. Regardless, I greatly appreciate Overlander64's quick input. I leave in six hours on a trip and will sleep better knowing the trailer is back online. Thanks again.
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