Hot Runner Temperature Controller alarm display--TC open

Hot Runner Temperature Controller alarm display--TC open


Possible reasons: The thermocouple wire is blown (or broken), the wire ends are loose, the connecting cable is broken, etc.


Diagnosis method:

1) Do the multimeter test the resistance of the corresponding pin or hole of the mold connector.

2) Remove the mold connector and check the wire end wiring, and directly measure the thermocouple resistance

3) Multimeter measures the two ends of the connecting cable, whether there is an open circuit

4) Remove the mold plate and check if the thermocouple is broken.


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