Briggs & Stratton Generator Error Code 25: How to Fix It

Q: What causes Briggs & Stratton error code 25?

Error code 25 is triggered when the generator's voltage output drops below safe levels, typically below 105V on a 120V circuit. Common causes include dirty air filter, low oil, bad fuel, worn spark plug, or issues with the voltage regulator.

Q: Can I continue running my generator with error code 25?

No, you should not continue running the generator with error code 25. The under-voltage protection is designed to prevent damage to connected equipment. Low voltage can damage motors, electronics, and other sensitive equipment.

Q: How do I reset Briggs & Stratton error code 25?

Turn off the generator, wait 30 seconds, then restart. The error code should clear automatically if the underlying voltage issue has been resolved. If the code returns, further troubleshooting is needed.

Q: Why does my generator voltage drop when I add load?

Voltage drop under load typically indicates the engine isn't producing enough power due to maintenance issues like dirty air filter, old fuel, or worn spark plug. It can also indicate a failing voltage regulator or overloading the generator beyond its rated capacity.

Q: How often should I check my generator's voltage output?

Check voltage output monthly during regular maintenance, before storing for winter, and after any extended storage period. Always test voltage when you notice lights dimming or equipment running poorly when connected to the generator.

Abstract

Briggs & Stratton Generator Error Code 25 indicates an under-voltage protection trip, meaning your generator's voltage output has dropped below safe operating levels. This safety feature automatically shuts down the generator to protect connected equipment from potential damage caused by low voltage conditions.