What to do if the Mijia Air Conditioner displays error code E6.1?

The display of E6.1 on the Mijia Air Conditioner indicates a communication failure between the indoor unit and the outdoor unit’s mainboard. This fault can be triggered by low voltage (such as below 130V). To address this issue, you should contact a professional electrician to inspect the house wiring.
It can also be caused by problems with the connection wires between the indoor and outdoor units, the indoor unit control panel, or the outdoor unit control panel.
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.