What to do if the Mijia Air Conditioner displays error code U2 (U2.1/U2.2/U2.3)?
The Mijia Air Conditioner displays the error code U2 (U2.1/U2.2/U2.3), which indicates the overcurrent protection of the outdoor unit electronic control.
You can troubleshoot it by the following steps:
1. If the voltage is unstable, please wait for the voltage to stabilize before trying to turn it on. If the voltage is unstable for a long time, please install a voltage stabilizer;
2. Check whether the outdoor unit heat exchanger is dirty or blocked. If possible, please clean the outdoor unit heat exchanger;
3. Check whether the outdoor unit is placed in a grille, resulting in poor heat exchange. If so, the grille should be removed;
4. Check whether the indoor unit filter is dirty or blocked. Please clean the filter;
5. Check whether the airflow of the indoor and outdoor units is not smooth. If the airflow is blocked, please remove the obstruction of the outdoor unit;
6. If the error code appears in a high-temperature environment and the air conditioner can operate normally. This is normal and will be automatically eliminated when the temperature drops.
If the problem cannot be solved by the above method, it is recommended to apply for after-sales inspection.
You can troubleshoot it by the following steps:
1. If the voltage is unstable, please wait for the voltage to stabilize before trying to turn it on. If the voltage is unstable for a long time, please install a voltage stabilizer;
2. Check whether the outdoor unit heat exchanger is dirty or blocked. If possible, please clean the outdoor unit heat exchanger;
3. Check whether the outdoor unit is placed in a grille, resulting in poor heat exchange. If so, the grille should be removed;
4. Check whether the indoor unit filter is dirty or blocked. Please clean the filter;
5. Check whether the airflow of the indoor and outdoor units is not smooth. If the airflow is blocked, please remove the obstruction of the outdoor unit;
6. If the error code appears in a high-temperature environment and the air conditioner can operate normally. This is normal and will be automatically eliminated when the temperature drops.
If the problem cannot be solved by the above method, it is recommended to apply for after-sales inspection.
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