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 contacts are in good contact.

First, check whether the "heating wire" is damaged or whether the "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. The failure is generally caused by the lack of electric heating tube circuit in the power supply. 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. The induction switch is caused by the combustion of the thermostat assembly. Must be replaced. You can buy it at the local electronic market or go to the maintenance department, and they will fix it for you.