1515
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Generac · Standby Generators
Engine run state aborted by protective controller logic.
Quick Answer
Error code 1515 on your Generac Standby Generators means: Engine run state aborted by protective controller logic.. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Check active alarm history on controller.
2
Inspect battery/fuel/air filters.
3
Clear fault and run brief test only.
4
Do not repeatedly force starts.
5
Schedule service diagnostics.
Pro Tip
This issue typically requires professional diagnosis. Attempting this fix without proper training could cause further problems.
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