Question about Generac Guardian Electrical Supplies
Display shows low battery and the built in charger should be charging the battery. How can I correct that problem?
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Posted on Jan 02, 2017
If this is one of the big "taco cart" portables you need to check that the vent on the gas cap is open when you're running the engine. In the center of the gage on the gas cap is a little knurled knob, turn it counter clockwise (lefty loosey), about a half turn or so and run the generator.
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Posted on Dec 02, 2008
SOURCE: Generac Guardian 15kW Generator
That sounds just about right, if the relay contacts get welded together it sometimes takes out the driver on the printed circuit board. As you found out, 12vdc from 23 to 194 makes the transfer switch move to the Generator position, relay not energized makes the ATS move to the Normal position.
You can make a nice test function by installing a 10 amp contact switch in series with either the N1 or N2 terminals. When the switch is open the generator thinks the Normal power has failed.
Posted on Jan 26, 2009
The problem is that the printed circuit board inside the generator draws a little current from the battery even when the generator is not running. Over the course of a few days this can make the battery weak enough to be unable to get recharged by the built in running charger which results in not enough power to run the electronic governor on the generator. Usually the spark plugs will work even with a fairly low battery.
Most of the Generac generators come with a built in trickle charger that runs off of the transfer switch load terminals. If your built in charger isn't doing the job it's either broken or you have the wrong sort of battery installed in the generator.
Posted on Jan 26, 2009
Your electrician should have run a set of wires out to the generator from the transfer switch. The unit actually comes with a fuse holder, fuse, terminal connector, and jumper wire for installing these wires to the t1 or t2 terminals in the transfer switch. The dc wires will be the ones coming out of the battery charger, 1 of them will have a red marker around it, that is your dc positive. The 2 wires coming out of the opposite side of the battery charger is actuall your ac connection.
hope this helps let me know.
Posted on Dec 03, 2009
Tips for a great answer:
No Battery Charge DC output.
1. Battery posts are corroded. 1. Clean battery posts.
2. Battery cable is bad. 2. Replace cable.
3. Battery is defective. 3. Check battery condition; replace if
4. Receptacle is bad. 4. Contact Authorized Service Facility.
Hope this helps!
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