How to Fix / Troubleshooting

Safety first: Turn OFF the generator and allow it to cool completely before opening the enclosure. Beware of hot surfaces.

Steps:

Check airflow: Inspect all intake and exhaust louvers on the Honeywell enclosure for leaves, snow, or debris. Clear obstructions and maintain required clearance around the unit.
Inspect fan and shrouds: For air-cooled models, verify that the engine-mounted cooling fan and plastic shrouds are intact and not blocked. Replace broken shrouds or fan blades.
Coolant level (liquid-cooled): On liquid-cooled Honeywell units, check the radiator and overflow tank coolant level when cool. Top up with the specified coolant mix if low and inspect for leaks.
Temperature sensor: Locate the engine temperature sensor and inspect wiring. A loose or corroded connector can cause false high-temp alarms. Clean and reseat.
Test run: After corrections, clear the alarm and run a manual test while monitoring for abnormal temperature rise or fan noise.

Generator shuts down during operation and displays 'High Temp' or 'Overtemperature' alarm.

Possible Causes