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Old 06-07-2007, 09:19 AM   #1
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1990 36' Land Yacht
High Springs , Sunny Florida
Join Date: Apr 2007
Posts: 9
1990 land yacht electrical

Any suggestions please, my interior lights only work on dc power, they will not work on ac only. The only thing that works on ac power is the air conditioner and the refrigertor.

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Old 06-07-2007, 11:24 AM   #2
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1978 31' Excella 500
Santa Maria , California
Join Date: Aug 2006
Posts: 36
nana's ride
I am assuming that you have a battery hooked up to know that the lights work on 12 volts. When you plug in to shore power the 120 volts goes to a converter that charges the battery and supplys 12 volts for your lights. I think, if your using the original converter, you still have to have the battery hooked up. If you do, it sounds like you may have a bad converter. Best of Luck...."Mac"

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Old 06-07-2007, 11:38 AM   #3
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1971 27' Overlander
Central , Ohio
Join Date: Jun 2006
Posts: 2,365
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We had a similar situation with our 71. Turns out the PO installed a cut off switch to shut the converter down at night to eliminate the humm. Air and fridge still work when it's off. The switch in our case is in one of the bunks just above the converter.

Do you have any wayward switches you've not tried yet...? Now that we figured it out - it's really quite handy.
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