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Old 12-15-2019, 10:27 PM   #1
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Battery: inverter working but lights do not

Hi all,


Thanks to all who replied to my previous post on a related subject. One thing is still unsolved -- when I turn off the shore power, the battery+inverter work fine, powering the outlets, but the lights do not come on. I've checked all the fuses on the WFCO for continuity - they check out fine. The battery voltage is fine too (well, again -- the outlets work through the inverter). Where should I be looking next?


Thanks.
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Old 12-16-2019, 04:14 AM   #2
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Is the 12vdc disconnect switch on?
12vdc fuses in the distribution panel?
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Old 12-16-2019, 11:46 AM   #3
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Quote:
Originally Posted by debedb View Post
Hi all,
Thanks to all who replied to my previous post on a related subject. One thing is still unsolved -- when I turn off the shore power, the battery+inverter work fine, powering the outlets, but the lights do not come on. I've checked all the fuses on the WFCO for continuity - they check out fine. The battery voltage is fine too (well, again -- the outlets work through the inverter). Where should I be looking next?
Thanks.
Start by telling us if ANY 12 Volt items are working when the lights are not. For example: water pump, fan(s), heater, etc.

If every 12 Volt device is working - except the lights - then we have one problem. If none are working that is a different problem.

And I assume from your message that everything, lights included, is working when you are plugged in - please confirm.

We need this info to narrow down the possibilities.
Thanks,
Alan
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Old 12-16-2019, 12:26 PM   #4
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Quote:
Originally Posted by padlin View Post
Is the 12vdc disconnect switch on?
On

Quote:
12vdc fuses in the distribution panel?
All are fine.
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Old 12-16-2019, 12:27 PM   #5
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Quote:
Originally Posted by alanmalk View Post
Start by telling us if ANY 12 Volt items are working when the lights are not. For example: water pump, fan(s), heater, etc.
Will check.

Quote:
And I assume from your message that everything, lights included, is working when you are plugged in - please confirm.
Correct.
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Old 12-16-2019, 12:47 PM   #6
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If the battery disconnect switch is on (and working) and all converter fuses check out OK, there is a 40 amp in line fuse in the battery case that is connected to the wiring between the battery & converter. That would be the next thing I'd check. Some wiring configurations also have a 40 amp auto reset thermal circuit breaker in series with the battery wiring that is worth checking.
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