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What's the matter if the sd 902 steamed happy electric lunch box is not electrified after being connected to the power supply?
Electric lunch boxes can't be heated, generally for the following three reasons:

1. The heater is not heated, and the indicator light is not on.

Cause: The power supply is not connected; The power cord is damaged.

Solution: check whether the plug socket and power cord are in good condition and inserted in place; Send it to the designated maintenance department for repair.

2. The heater is not heated, and the indicator light is on.

Cause: heater damage.

Solution: Send it to the designated maintenance department for repair.

3. The temperature is too low after completion.

Reason: The power-on time is too short; Ambient temperature, the temperature of rice, vegetables and soup is too low.

Solution: appropriately extend the power-on time.