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Generac Generators (SEARS, etc.) Restoring, maintaining and operating Generac generators.

Generac Generators (SEARS, etc.)

Generac 58730 17KW

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Old 03-03-2019, 05:06:15 PM
Brooker Brooker is offline
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Default Generac 58730 17KW

Hello there, I have a 17KW Generac generator.
It is having an RPM Sense error.
When I start it, the generator starts then Revs very high, then shuts down and displays RPM Sense loss.
Any help would be greatly appreciated.
The serial number is 6152845

Thanks Brooke
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Old 03-14-2019, 11:50:46 PM
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Craig A Craig A is offline
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Default Re: Generac 58730 17KW

Welcome to STAK...….

I moved your question to the proper forum.
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Old 03-15-2019, 12:26:10 AM
pegasuspinto pegasuspinto is offline
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Default Re: Generac 58730 17KW

does it make voltage? If you got nothing else, plug a cheap light bulb into the gen first, see if it comes on as the generator starts and dies

Without voltage, the governor has nothing to sense to regulate the speed
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Old 03-28-2019, 12:34:50 PM
Gentek Gentek is offline
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Default Re: Generac 58730 17KW

It sounds like it has a problem with the ignition coils. RPM sensing is done through the 2 coil packs. If there's no signal it can cause all kinds of issues. There's a topic here: about troubleshooting ignition coils on a slightly newer Evolution generator.
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