What to do if the Mijia Refrigerator Cross Door 502L displays dF?

If the Mijia Refrigerator Cross Door 502L displays dF, it means that the freezer left door switch of the device is faulty.
The freezer left door switch is a dedicated sensor that detects the opening and closing of the left freezer door.
If the device displays dF, the cause of the fault is a freezer left door switch failure, circuit blockage, door switch misalignment, magnet detachment, and a small probability of main board failure.
To solve the freezer left door switch failure of the device, please refer to the following steps:
  1. Please check whether the freezer left door is closed properly and whether there is any foreign object stuck at the door axis.
  2. After confirming that the door is closed properly, turn off the power the failure of the device for 5 minutes.
  3. Turn it on after 5 minutes to observe.
If the problem is still not solved, please apply for after-sales inspection.

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