Question about Generac Electrical Supplies
By "gas" I assume you mean gasoline? Overcrank means too many starter revolutions without engine run which agrees with no auto-start.
If gasoline, suggest you drain the fuel bowl and some of the tank(pint or so). Capture fuel into container. Then transfer to a transparent/glass container and let set a few minutes. Then look for a water line(fuel is lighter than water and will separate). Line high in jar means lots of water. If any sign of water and you need to clear the fuel system and tank. Then completely fill with FRESH fuel from a trusted source. Or if refueling too far, if you only use fuel from top of container that has sat for a few minutes, the water is on bottom and fuel on top.
Posted on Mar 18, 2019
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Posted on Jan 02, 2017
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
SOURCE: 10kw Generac shut down overspeed
Make sure that the throttle linkage is all there and not damaged/misadjusted, then get a manometer and check your inlet gas pressure. Gas pressure should be 8 inches of water column and stay there running or not.
Posted on Apr 06, 2009
the instructions says the voltage regulator is automatic/digital. when you check the voltage is there any load on the generator? if applying load to the generator doesn't help, you can manually change the motor speed where the governor connects to the carborator, but it may change the frequency, but the regulator may fix it
Posted on Apr 13, 2009
I have a generator that did the same thing. It would start and then stop within a few seconds. The more expensive generators have an oil level safety switch to prevent the engine from burning up. There is usually a wire connecting to the switch on the outside of the engine near the oil fill hole. Remove this wire and try to start the generator. If it runs without a problem then it is the switch. You need to remove the switch and take it apart carefully and clean it. There is a small float inside the assembly. When the oil runs low the float allows the switch to short to ground which kills the spark to the spark plug. Hope that helps.
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Posted on Oct 01, 2009
Testimonial: "This is good information in the event that the low oil switch is part of the problem."
I have the 18KW model and was told that most alarms relate to a low battery. Make sure the battery charger in the Transfer Switch is properly feeding the battery or hook up a mobil battery charger to the battery and see if the alarm goes away. Good Luck.
Posted on Oct 12, 2009
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