Cause: Replace fan comes when the cooling fan’s runtime counter has reached its maximum (pre-set) running hours — ABB recommends replacing the fan to avoid overheating and failure.

acs800 replace fan warning reset indicates that the cooling fan's runtime has reached a predefined limit set by the manufacturer. This is a preventative measure to ensure the fan is replaced before it fails, which could lead to overheating and damage to the drive's internal components.

Follow these steps to correct acs800 replace fan warning reset:

• Check fan condition, if possible then replace fan.
• If you don't want to replace fan then goto the "parameter group 1".
• Then goto the parameter "01.44" and "reset" the counter.
• After reset the counter then "restart drive".