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Old 05-06-2014, 11:39 AM   #1
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DC Electrical Issue

I have 95 Coachman 380 DP and last week when I was at the MH I had no DC electrical. I bought 4 new batteries (due for replacement anyway) and still have no DC electrical unless the MH is started and running. Once I shut down, hook up to shore power the DC rocker switch does not power up the "house" DC electrical. I have changed nothing, not rewired anything. Works fine with MH running, but when shut off no DC power.

I let the bus sit for a week and went by Sunday and despite having all my power switches off my batteries are dead as the coach is sitting in storage not connected to power.

Any ideas?

J.Chet USAF LTC Retired
Teddy & Bella (Soft Coated Wheaten's)
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Old 05-06-2014, 12:24 PM   #2
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You may have not flipped the 12 volt house switch on or the switch may be bad

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Old 05-06-2014, 12:25 PM   #3
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If you have battery disconnect switches, make sure they are actually passing electricity when in the on position. (Use a multimeter) The solenoids are also protected by fuses or circuit breakers, make sure they are good.

You are going to have to trace power from the batteries to the distribution panels (fuse) step by step to figure it out.

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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Old 05-07-2014, 03:56 PM   #4
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I believe part of my issue is my charger/converter is shot. Although this doesn't explain why the house batteries are draining when not connected to shore power. Replacing that unit tomorrow so maybe that will resolve the problem.
J.Chet USAF LTC Retired
Teddy & Bella (Soft Coated Wheaten's)
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Old 05-07-2014, 05:44 PM   #5
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You have control boards, LP detector that will draw small but draining power from your batteries.
Here is a link to battery info and other items to help you.
When you have shore power check out your battery charging circuits , converter, and your alternator when your driving.
In my signature below you will find other links that may relate to your problem also.
98KSCA, 99MACA, 03 KSCA-3740- 8.1 Chev-- ALLISON Trans, now in good hands
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Old 05-07-2014, 08:53 PM   #6
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If your converter is internally shorted, that can kill your batteries.

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69' Camaro in tow
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