What to do if the Mijia Air Conditioner displays error code U1.1?

The display of U1.1 on the Mijia Air Conditioner indicates a current fault in the outdoor unit’s electrical control module, which is caused by issues with either the outdoor unit’s electrical control panel or the compressor.
To resolve this issue, please refer to the following steps:
1. Turn off the air conditioner and disconnect it from the power source. Wait for approximately 3 to 5 minutes before reconnecting the power. Then, turn the device back on and check if the issue is resolved;
2. If the problem is not resolved through a power restart, it is recommended to apply for after-sales service for further inspection. A professional technician can diagnose the issue and provide the necessary repairs to restore normal operation.