WRN-631 WRN-632 WRN-633 WRN-640 WRN-641 K type thermocouples
WRN-631 WRN-632 WRN-633 WRN-640 WRN-641 K type thermocouples, the multimeter selects the appropriate resistance level. The two test leads respectively touch the two ends of the thermistor, and the thermistor is heated by hand or heated by other methods. If the resistance value changes linearly, it proves to be good. If there is no change, The description has expired.
There are several reasons for the thermistor to burn out:
1. The instantaneous current of the thermistor is too large, and the resistance coil is broken;
2. The thermistor's resistance wire insulation protects the wear and tear to form a short circuit between the coils;
3. The line voltage is unstable and fluctuating, and the instantaneous voltage exceeds the safety index of the thermistor.
The three points introduced above are the causes of general problems. The specific situation depends on various factors such as the use environment.
What to do if the thermistor of the induction cooker is damaged
The induction cooker thermistor is damaged and needs to be stopped and repaired in time. Induction cooker thermistor damage effect: The thermistor in the middle of the coil of the induction cooker is used to detect the temperature of the pot, to prevent the pot from burning dry and to control the temperature of the food in the pot. When this thermistor is damaged, the induction cooker will stop the power output (not heating) and display a fault code.