Wacker Neuson
Cooling System Inefficiency / Overheating Without Sensor Trip
Generator overheats but no specific overtemperature code is shown; coolant boils over
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Stuck thermostat, Partially blocked radiator, Failed radiator cap, Inoperative cooling fan
How to Fix / Troubleshooting
Safety first: Allow the engine to cool completely before opening the cooling system.
- Check coolant level and mix: Ensure proper level and correct antifreeze concentration.
- Inspect radiator fins: Clean dirt and debris from fins with low-pressure air or water.
- Test thermostat: Remove and test in hot water to verify opening temperature. Replace if stuck closed or sluggish.
- Radiator cap: Replace the cap if the seal is damaged or if it cannot hold pressure (have it tested if possible).
- Fan operation: Confirm that mechanical or electric fans operate correctly when the engine warms up.
Advertisements
Repair Difficulty
Medium
3/5
Advertisements