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What are the top reasons a Generac generator won't start?

Typical causes of a Generac standby generator not starting include fuel supply issues (propane or natural gas), transfer switch faults, and surge‑damaged control modules. Lack of maintenance and improper or DIY installation can also prevent startup and may void the warranty. Our licensed electricians install and service transfer switches and generator wiring, and we’re a certified Generac dealer. Serving Columbus and nearby communities.

  • Confirm gas/propane service is on.
  • Check the transfer switch status.
  • Look for control panel alerts.
<br/> Updated: 2025-12-11 <br/>

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"He narrowed it down to a control module of our backup generator that was damaged as a result of a power surge." — Taymoor A.

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