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Old 04-05-2021, 07:17 AM   #1
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No slide and awning on battery only

2018 Jayco whitehawk 27rb question.
Had trailer plugged in for 2 weeks to shore power. Un plugged and awning and slide won't operate. Push battery status says low. Checked battery load says good 12.8 volts. Checked all fuses with volt meter show good. Cleaned ground at tounge. Still nothing unless I plug in. Lights work dim. If I hit awning or slide they go out. Anyone know of another ground anywhere I'm missing?
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Old 04-05-2021, 07:50 AM   #2
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Did you measure that voltage at the battery? Symptoms sound like a weak or failed battery. Did you test the battery under a load?
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Old 04-05-2021, 07:57 AM   #3
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Yes load tested battery is good stands at 12.6 13.2 when plugged in. I also tried a new battery I have and same problem. Definitely acts like a bad ground.
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Old 04-05-2021, 10:00 AM   #4
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Do the lights dim at all when the items are tried? This would indicate a drop in all 12 volt power when the motors are activated.

You will need to measure the voltage downstream to see what is going on. If you can get to one of the motors that would be perfect. Measure from the hot wire to the ground wire. Odds are you will see a very low or no voltage at all.

Then measure from the hot wire to a metal surface that should be grounded. If the 12 volts measures good from the 12 volt feed wire to ground, then the problem is in the ground wire connection from the motor. If it still shows low or no voltage, the problem is in the positive 12 volt feed. If there, I would measure at the fuse panel next.
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Old 04-05-2021, 10:42 AM   #5
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I just found the problem. The battery is grounded to the front of the trailer. The converter grounds to the frame under the belly. That ground connector was bad loose and not making a good contact.
That's why it would work on shore power only. Then the frame is grounded from shore power.
Hope this will help anyone else who might have this problem.
Thank you!
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