1.* * Jointly with other owners, complain to the relevant departments about the developer's failure to pay the maintenance fund, and ask the relevant departments to investigate and hold them accountable.

2. Organize owners' committees or owners' representatives together with other owners, actively negotiate with developers to solve problems, and require developers to pay overhaul fund according to regulations.

3. If the developer refuses to fulfill its obligations, you can consult the relevant legal institutions and file a lawsuit in accordance with legal procedures to safeguard your rights and interests.

4. At the same time, you can also consult a professional real estate lawyer to understand relevant laws and regulations and seek legal support and advice.

5. In the process of handling disputes, it is suggested to keep relevant evidence, such as the developer's commitment letter, house purchase contract, house filing and other documents, in order to safeguard their own rights and interests.