Temperature control box alarm display--Shorted Heater
Diagnosis method:
1) Whether the multimeter's resistance to the corresponding pin or hole of the mold connector is normal
2) Remove the mold connector and check the wire end wiring, and directly measure the heating wire resistance.
3) The multimeter measures the two ends of the connecting cable to check whether the inner wire is melted and shorted.
4) Remove the mold plate and check if the heating wire is flattened, and the wire is broken and shorted.
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