Issue: The display shows the follow configuration, 4 leds are ON on the freezer side:

Solution:

From the perspective of the phenomenon,

this refrigerator has entered the "Test" mode (T4 alternating refrigeration mode for both the freezer and the refrigerator compartment).

According to the program, there are two ways to enter the T mode:

1. Pressing the buttons on the main control board;

2. Pressing the combination of buttons on the display board.

If the refrigerator entered the T mode by itself without any operation from the user.

It is suggested to replace both the main control board and the display board simultaneously.