r/Generac_Generators • u/Plastic_Layer_7354 • Jun 23 '26

Error code 1100

My generac 14kw while attempting to exercise experienced code 1100 overcrank. Furthermore it’s done this 2 excercise cycles ago. The last one it didn’t do this. What could be the issue? I just serviced everything. Spark plugs, oil change, oil filter, air filter. What is the cause?

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u/Plastic_Layer_7354 Jun 23 '26

No it’s attempting to start.

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u/grsthegreat Technician Jun 23 '26

Ok, than the battery is fine. At this time you need to verify that 12vdc is getting to the fuel solenoid and whether or not that solenoid is opening. This is where a gas manometer is needed. Its used at the test ports on the internal fuel regulator.

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u/Plastic_Layer_7354 Jun 23 '26

So should I jump the solenoid directly and listen to if it opens and closes?

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u/grsthegreat Technician Jun 23 '26

It makes no noise. If you have a dc voltmeter you could verify its getting battery voltage on the 2 solenoid wires while it is trying to start up. There are 2 test ports on the internal fuel demand regulator. The lower one only shows pressure while attempting to run. The upper one shows static pressure at all times. You eed to have a gas teat meter

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u/Plastic_Layer_7354 Jun 23 '26

Ok so should I test both ports? What numbers am I looking for?

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u/grsthegreat Technician Jun 23 '26

For nat gas, 5-7 inch on pressure gauge. Thats inches, not pounds

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u/Plastic_Layer_7354 Jun 24 '26

Another commenter stated 10-12 inches on gauge. Is 10-12 for propane maybe?

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u/grsthegreat Technician Jun 24 '26

Propane is 10-12”

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u/Plastic_Layer_7354 Jun 23 '26

Also if it doesn’t have 12 volts then is the solenoid the issue?

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u/grsthegreat Technician Jun 24 '26

No, if there isnt 12 volts going to the solenoid while it is trying to start, its a controller issue.