Appendix 5 common question A&Q
（1）check if the thermocouple cold point is short with the outside cover. If short, please
change another thermocouple.
（2）the weak electricity such as outside interference, thermocouple, temperature module
should separate from the strong electricity, make sure there is certain distance
between them. If the device has motor, inverter, make sure to connect the ground
correctly.
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