According to the contact information published by Boiler official website, the 400 number is the official national customer service hotline of Weineng Boiler.
In addition, according to the contact information published by Weineng Boiler official website, the service time for answering the above 400 telephone numbers is 7 days *24 hours. Can provide users with product knowledge consultation, product installation and maintenance services.
When purchasing products, you should know the delivery, installation and return policies of the merchants in advance, and ask the merchants for invoices or receipts in time after payment. Consumers who buy offline ask the sales staff to list all kinds of charges and take photos to keep them. Online shopping consumers need to keep chat records, order information, payment information, screenshots of promotional offers and other related shopping vouchers.
Warranty matters
Keep the warranty card and maintenance records properly. After the product is installed, consumers should keep the "warranty card" and purchase invoice attached to the product packaging. If the warranty certificate cannot be found or the warranty period has expired, most brands will also provide paid maintenance. After replacing the parts, just keep the old parts and maintenance records, and you can send the replaced originals to relevant departments for testing.
The three-guarantee service voucher includes purchase invoice, sales voucher (online brand official banner/self-operated store of brand cooperative e-commerce platform/shop screenshot of brand certified dealer, machine-printed receipt, machine-printed sales receipt and machine-printed shopping receipt) and sales contract (proof).