1. Product warranty policy description;

1.1 All the Wanwei series products implement the latest three guarantees service policy strictly in accordance with relevant regulations of the country and the company.

1.2 Users can enjoy free warranty service with valid invoice, warranty card or valid purchase certificate.

1.3 The Biot series products are generally used for industrial and commercial use. The warranty period of the compressor is 1 year and the compressor is 3 years, and the household model series is 3 years and the compressor is 5 to 6 years. Some customized non-standard products are subject to the sales contract commitment.

1.4 If there is any conflict between the user's product manual or the original warranty period, the valid original commitment statement shall prevail.

1.5 If there are changes during the product warranty, the notification shall prevail.

1.6 For users who cannot provide proof of purchase date or warranty card, the starting date of the warranty period shall be 3 months after the original factory date or factory code. If the repaired product has no factory code, date or ambiguous, and the number is modified privately, no warranty will be provided.

1.7 Failures caused by user negligence, improper maintenance or improper maintenance are not covered by the warranty.

1.8 The exterior parts of the casing are not covered by the warranty due to natural pollution.

1.9 Due to the use environment, the product has corrosive gas, calcification phenomenon, and excessive environmental dust on the product parts. If the product is used in a high temperature environment, it will not be covered by the warranty.

1.10 The warranty card, the date of purchase is altered or the non-conformance will not be guaranteed.

1.11 Damage caused by force majeure caused by other natural disasters is not a free warranty.

1.12 Repairs beyond the repair period are not allowed.

1.13 Due to the abnormal use voltage, the power cord is installed incorrectly, and the damage caused by the failure to meet the wiring standards of the relevant specifications is not covered by the warranty.

1.14 Without the manufacturer's consent, the non-manufacturer designated after-sales maintenance service unit will not be dismantled, modified, repaired and damaged or caused by accidents without warranty.

1.15 The area far beyond the normal service range, due to the construction needs of a construction unit, the products are far away from the more remote mountainous areas of the city or other special engineering construction sites. Due to inconvenient on-site services and transportation inconvenience, you can negotiate after-sale treatment methods with customers or provide paid services (including products under warranty).