First determine whether the power supply of the base is in good contact, and then look at the switch. You can turn on the switch to check whether the contact is good.

Check whether the "heating wire" or "thermostat" is damaged. Generally, the "thermostat" is broken, so buy a "thermostat" to replace it.

Please don't heat it after power on, and the indicator light won't light up. This fault is usually caused by the power supply without electric heating tube circuit.

During maintenance, the multimeter R× 10 can be used to measure the resistance at both ends of the three-core plug L and N on the base power cord.