This manual mainly introduces the use method, installation steps, warranty period and other information of Haier 3D166H-J1(E) electric water heater
The manual explains how to install the Haier 3D series water heater, including required water pressure, connection steps, and safety precautions. It also describes proper operation and maintenance procedures to ensure reliable performance.
Additionally, the document outlines Haier's warranty policy, detailing the eight‑year free repair period for performance faults, lifetime replacement of heating elements, and conditions that void the warranty, such as commercial use or lack of a valid purchase invoice. This manual is written in Chinese.
The product is covered by an eight‑year free repair warranty for performance faults.
No, using the heater for commercial purposes limits the warranty to three months for the whole unit and main components.