The user can refer to the accumulated power-on time and accumulated running time recorded by the
inverter, and combine the actual operating conditions and the external environment to determine the
replacement period.
1) Possible reasons for the damage of cooling fan: bearing wear and vane aging. Distinguish standard:
Any cracks in the fan vanes, any abnormal vibration sound during the starting of frequency inverter.
2) Possible reasons for the damage of filter electrolytic capacitor: poor quality of the input power supply,
the environment temperature is high, the load change frequently and the electrolyte aging.
Distinguish standard: Any leakage of its liquid, if the safety valve is protruding, electrostatic
capacitance and insulation resistance measurement.
8.3Warranty Items
1) Warranty only refers to frequency inverter.
2) Under normal use, if there is any failure or damage, our company is responsible for the warranty
within 18 months. (Leave factory date is subjected to the S/N on the frequency inverter nameplate or
according to the contract). When over 18 months, reasonable fee will be charged for maintenance;
3) During the period of 18 months, if the following situation happens, certain maintenance fee will be
charged;
a. The users don’t follow the rules in the manual lead to the frequency inverter damaged;
b. The damage caused by fire, flood and abnormal voltage;
c. The damage caused by using the frequency inverter for abnormal functions;
d. The relevant service fee is calculated according to the manufacturer’s standard, if there is an
contract, then it is subject to the contract items.
! For detailed warranty instructions, please refer to the Product Warranty Card.
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