INVERTER RADIATOR FAN FAILURE
Fanuc · Series 0i-D/0i Mate-D Maintenance
What does 601 n AXIS: INV. RADIATOR FAN FAILURE mean?
This warning signal on the Fanuc Series 0i-D/0i Mate-D αi servo system indicates a failure of the inverter radiator fan. This condition (SVWRN4 and SVWRN1 active) will eventually lead to an inverter overheat alarm if the cooling issue persists.
Common Causes
- Failure of the cooling fan responsible for the inverter's radiator.
- Accumulation of dust or debris on the radiator fins or fan blades, impeding airflow.
- Poor electrical connection or power supply to the radiator fan.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Visually inspect the inverter radiator fan and its associated radiator fins for any obstructions, debris, or accumulation of dirt.
- 2
Check the electrical connections to the radiator fan for secure seating and proper voltage supply.
- 3
Observe the fan's rotation during operation; listen for unusual noises or a complete lack of movement.
- 4
Ensure that the fan's air intake and exhaust vents are clear and unobstructed.
- 5
If the fan is found to be faulty or not operating correctly, replace the inverter radiator fan unit.