Electric lunch boxes can't be heated for 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: The heater is damaged.
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 boot time.