Electrical Malfunction - Samsung FER710DRS Service Manual

4. Troubleshooting

4-2 Electrical Malfunction

Troubleshooting (Power)
Check terminal block voltage.
Check the votage of PCB, SMPS
-input : 120V
-output : 12V,5V
Troubleshooting (Heating)
Check the relay terminal voltage
(240V)
Check the all IGBT terminal resistance
(G-E, G-C, E-C)
Is there any shorted circuit?
Perform the 'PCB failure' process
No Power
(240V,60Hz)
Check the wiring.
Replace the defected PCB.
Heating Failure
Check the wiring.
Check the circuit breaker.
Check the terminal block connections
Replace or Repair the wiring
Repair the relay or missing circuit
component.
Replace or Repair the wiring
Replace the Assy-Inverter Module.
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