Email:chenzhenxiang@optfan.comDetails of the warranty
Quality assurance is for the whole machine .The quality guarantee period is from the date of acceptance by customers. Failure occurs during the quality guarantee period, such as products, our company provide free consultation, maintenance services (including vulnerability free replacement of spare parts), quick response,professional troubleshooting.
The damages caused following reasons are not in warranty scope:
1. Improper use,maintenance and safekeeping;
2. Buyer and user themselves dismount or remove the product;
3. Force majeure factors(lighting,earthquake,typhoon,etc.).
Warranty And Maintenance
In order to ensure the long life of the normal operation, the fan should also be maintained regularly, especially when applied in harsh environments.For any fan or inverter controller maintenance, please be sure that the fan stops running and cut off the controller power to protect the safety of personnel.
| Interval | KQ、AirWalker series | Navigator、Superwing、Airwalker II Series |
| Test run | Check the operation of the fan, any abnormal sound or vibration | Check the operation of the fan, any abnormal sound or vibration |
| 3000 hours | Clean the dust on the inverterClean the dust on the blades | Clean the dust on the inverterClean the dust on the blades |
| 4000 hours |
Check the mechanical fasterners to ensure that there's no looseness Check wire cable to ensure that there's no damage |
Check the mechanical fasterners to ensure that there's no loosenessCheck wire cable to ensure that there's no damage |
| 9000 hours |
Check the operation condition of power-driven device Check the oil level of motor gearbox |
Check the operation condition of power-driven device Check the situation of heat radiation system |
If the fan is running with a serious abnormal noise or vibration, it indicates that there exists some damages to themechanical parts somewhere, and you should immediately shut down the fan and do a comprehensive inspection.
Product warranty
Products Main fan unit Blades and Hubs
KQ Series 3 Years Lifetime
Navigator Series 2 Years Lifetime
Superwing Series 2 Years Lifetime
AirWalker Series 3 Years Lifetime
Airwalker II Series 2 Years Lifetime
For failures within the warranty period, please do not try to solve by yourself, the company can send you a free onsite professional service. But the following occasions are the paid services:
- Failures caused by incorrect use.
- Failures caused by your transform of our products without our permission.
- Failures caused by natural disasters and fires.
- Over the warranty period
- Other failures caused by non-corporate responsibilities.