Inspection item
INSPECTION AND MAINTENANCE 313
6.1.5 Replace parts
Inverter is composed of many electronic components such as semiconductor components.
Due to the composition or physical characteristics, the following components will age within a certain period of time,
thus reducing the inverter performance and even causing faults. Therefore, it is necessary to replace them on a
regular basis.
Use lifetime detection function as a guidance of parts replacement.
Part name
Estimated lifespan
Description
Cooling fan
2 years
For the axle of a fan, the standard lifetime is about 10 – 35 thousand hours. If fan
operates 24 hours per day, should be replaced every 2 years.
Capacitor
5 years
Capacitor is an electrolytic capacitor that deteriorates with time. The deterioration
level depends on ambient conditions. Generally, it should be replaced every 5
years.
Relay
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If bad contact occurs, please replace it immediately.
Note: 1. Please send the inverters to the factory for replacement.
2. For the replacement of cooling fan, please refer to section 3.10.
