common problem

Condition 1-The temperature does not increase during heating

It may be part of the ceramic heating element is damaged. Please use a three-meter to check the resistance of the ceramic heater. Put the terminals of the meter on both ends of the ceramic chip wire. If the measured value is not measured, the ceramic heater is damaged. If there is no damage, please check with a three-meter. If the blue wire terminal connected to the ceramic heater cannot be measured, it means that the wire part needs to be replaced.

Condition 2-The temperature is displayed as 0°C

First check whether the yellow line is properly connected, and then use a three-meter meter to measure the resistance at both ends of the thermistor. The value should be about 100K. If it fails to measure, it means damage.

Case 3-The temperature display exceeds 500°C

The circuit is short-circuited, please check whether the entire line of the thermistor is short-circuited.