If one of the following conditions is met, you can request a replacement:
15 Within 15 natural days after the customer receives the goods, it is found that the product is seriously inconsistent with the contract description in one or more important aspects;
√ Within 15 natural days after the customer received the goods, the product was found to have non-human damage performance failure.
We have the right to refuse the customer's replacement request in the following cases:
× Requesting a replacement for more than 15 natural days from the date of receipt;
× It is impossible to provide legal proof of purchase or receipt when the goods are exchanged, or to forge or alter the documents;
× Incomplete or defective appearance;
×Detected by LZK Liangzhi Technical Support Department, there is no quality problem itself;
× occurrence of collisions, burnouts caused by non-self-quality problems, and artificially modified, imported foreign objects (water, oil, sand, etc.), improper installation, failure to follow the instructions and use of the product quality problems;
× tear, change label, machine serial number, waterproof mark, anti-counterfeit mark, etc.;
× Products that are damaged due to irresistible forces such as fires, floods, lightning strikes, traffic accidents, etc. due to unavoidable factors;
× After contacting LZK Liangzhi to confirm the exchange service, the corresponding items were not issued within 7 natural days;
×The goods were damaged due to transportation, but the goods were not provided with the damage certificate issued by the transportation company;
× Other circumstances described in the policy.
The replacement of the product performance failure, LZK Liangzhi bears the replacement of the two-way freight.
You may apply for product warranty service if there is a performance failure during the product's effective warranty period.
The implementation of the free warranty service must meet the following conditions:
正常The product purchased from the product within the specified product warranty period, and the product has a non-human performance failure;
√ No disassembly, no modification or installation of non-official instructions, and other non-human-induced failures;
√ Provide valid proof of purchase, bill and order number.
The following conditions are not part of the free product warranty service:
× Collision and burning accidents caused by artificial non-product quality problems;
× Damage caused by unauthorized modification, disassembly, and shell opening, as directed by unofficial instructions;
× Damage caused by improper installation, use and operation that are not instructed by the instructions;
× In the absence of official instructions, the damage caused by the customer's private repair of the assembly;
× Damage caused by improper circuit modification or improper matching of accessories;
× Damage caused by failure to operate according to the product manual;
× Damage caused by operation in a harsh environment, such as flooding, freezing, etc.;
× damage caused by operation under a safe withstand voltage;
× Damage caused by forced operation in the event of aging or damage to components;
× Damage caused by reliability and compatibility issues when used in conjunction with non-LZK certified third-party components;
× damage caused by insufficient power or use of power with quality problems resulting in insufficient power supply;
× machine serial number, factory label and other signs torn, altered signs;
LZK Liangzhi provides you with comprehensive industry application solutions