When you complain to Haier about air conditioner installers, Haier usually takes the following measures:

1. Accept the complaint: Haier will record your complaint and accept it. They will collect your contact information, complaints and relevant evidence for further processing.

2. Investigation: Haier will investigate your complaint. They can contact the installer or related personnel to collect further information and evidence. This may involve on-site inspection, communication with all parties or other necessary methods to understand the specific situation of the problem.

3. Solve the problem: Once the investigation is completed, Haier will look for ways to solve the problem. Depending on the nature and severity of the problem, they may provide various solutions, such as reinstallation, maintenance, refund or other compensation measures.

4. Contact feedback: Haier will keep in touch with you and inform you of the investigation progress and solutions in time. They may ask you for further help or information to ensure that the problem is properly solved. It should be noted that the specific treatment methods and solutions may vary according to individual circumstances. Haier will try its best to solve the problem according to the specific circumstances of the complaint and ensure that your rights and interests are safeguarded. If you are not satisfied with the solution, you can consider seeking the intervention of a third party, such as consumer protection organizations or industry regulators, for further help and solutions.