Briggs & Stratton Generator Error Code 16: How to Fix It

Medium 45-90 minutes Critical Severity Verified June 2026
Error Code
Code 16
Brand
Briggs & Stratton
Product Type
generator
Severity
Critical
DIY Difficulty
Medium
Estimated Fix Time
45-90 minutes
Error Code 16 on your Briggs & Stratton generator indicates the engine has automatically shut down due to dangerous overheating. This critical safety feature prevents permanent engine damage from excessive heat buildup. The good news is that most overheating issues can be resolved with proper cleaning and maintenance.
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Tools You'll Need

How to Fix Error Code Code 16

  1. Turn Off and Cool Down Generator

    Never attempt to service a hot engine. Hot surfaces can cause severe burns and some engine fluids may be under pressure when hot.
  2. Check Engine Oil Level

    Use only the oil viscosity recommended in your owner's manual. Wrong oil type can cause poor lubrication and overheating.
  3. Inspect Air Filter and Cooling Fins

  4. Check Cooling Fan Operation

    Keep fingers away from the fan area when the engine is running. Moving fan blades can cause serious injury.
  5. Inspect Cooling System Components

  6. Test Temperature Sensor

  7. Check for Engine Internal Issues

    If you suspect internal engine damage, do not attempt to restart. Continued operation can cause catastrophic failure.
  8. Restart and Monitor

    If error code 16 returns immediately or the engine runs hot, shut down immediately and seek professional service.

Parts You May Need

Air filter element
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Temperature sensor
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Cooling fan assembly
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Head gasket kit
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Air filter element
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Temperature sensor
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Cooling fan assembly
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Head gasket kit
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Air filter element
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Temperature sensor
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Cooling fan assembly
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Head gasket kit
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Air filter element
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Temperature sensor
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Cooling fan assembly
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Head gasket kit
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Air filter element
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Temperature sensor
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Cooling fan assembly
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Head gasket kit
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Air filter element
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Temperature sensor
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Cooling fan assembly
Check Price on Amazon
Head gasket kit
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Air filter element
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Temperature sensor
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Cooling fan assembly
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Head gasket kit
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Air filter element
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Temperature sensor
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Cooling fan assembly
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Head gasket kit
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When to Call a Professional

Contact a certified Briggs & Stratton service technician if you find signs of internal engine damage (metal in oil, blown head gasket, bearing noise), if the temperature sensor needs replacement, or if the error code persists after addressing all cooling system issues. Professional diagnosis may be needed for internal engine problems or complex electrical faults.

Frequently Asked Questions

What causes Briggs & Stratton error code 16?
Error code 16 is triggered when the engine temperature exceeds safe operating limits. Common causes include low engine oil, dirty air filter, blocked cooling fins, failed cooling fan, or internal engine problems like a blown head gasket.
Can I reset Briggs & Stratton error code 16?
The error code will automatically reset once the engine cools down and the underlying overheating issue is resolved. Simply turning the generator off and on will not clear the code if the problem still exists.
How do I prevent my generator from overheating?
Prevent overheating by checking oil levels regularly, cleaning the air filter every 25 hours of operation, keeping cooling fins clean, ensuring adequate ventilation around the generator, and performing scheduled maintenance as recommended in your owner's manual.
Is it safe to run my generator after error code 16?
Only restart the generator after the engine has cooled completely and you've identified and fixed the cause of overheating. Running an overheated engine can cause permanent damage including seized pistons or warped cylinder heads.
How long should I wait after error code 16 before checking the engine?
Wait at least 30-45 minutes for the engine to cool down completely before touching any components or checking oil levels. Hot engine parts can cause severe burns and hot oil may not give accurate level readings.