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4-3 Electrical Malfunction
Troubleshooting (Power)
Check terminal block voltage.
(220V~240V, 50/60Hz)
YES
YES
YES
NO
No Power
Check the wiring.
NO
Check the votage of PCB, SMPS
-input : 220V~240V
-output : 12V, 5V
Replace the defected PCB.
Check the terminal block connections
Check the circuit breaker.
Replace or Repair the wiring
Troubleshooting (Heating)
Check the relay terminal voltage
(220V~240V)
NO
YES
YES
NO
Heating Failure
Check the wiring.
NO
Check the all IGBT terminal resistance
(G-E, G-C, E-C)
Is there any shorted circuit?
Perform the 'PCB failure' process
Repair the relay or missing circuit
component.
Replace or Repair the wiring
Replace the Assy-Inverter Module.
YES
Gate Collector Emitter