Question about Generac Guardian 0A18010 - battery charger

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Transfer switch will not switch back to utility

Dont know if battery charger is connected properly, will not transfer back to utility after an outage

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The transfer switch should transfer back to utility within about 30 sec. after utility is restored. While waiting for the transfer switch to switch back to utility volatge. Check for DC volatge across wires 23 and 194 in the transfer switch, if you have battery voltage(12-13.5 VDC) then you you probably have a stuck relay on the PC board in the generator. The board needs to be replaced. If you don't have battery voltage across these terminals then your problem is actually in the transfer switch.

Posted on Dec 26, 2009

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Does the unit operate normally when there is an outtage? Don't know your system,but, guessing the re transfer delay timer is not working.

Posted on Aug 01, 2009

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