Question: No display but still heating

Answer:

Reason:

Because Haier water heater have an excellent energy saving function. We design the PCB process like this, it is normal.

Solution:

Below explain can help you understand its process clearly.

1>For start: after switch on power, display board fully light 1 second,  then goes into standby status, only clock display on screen. You can press the power key to start up.

2>For power saving: after setting, If no operation within 2 minutes, it will goes into power saving model, only clock display on screen, you can touch any key to wake up the PCB showing.

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