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Troubleshooting
4-4 Case study for trouble shoots (cont.)
4-4-12 Case study – E461/361 & E464/364 & E466/366
▪ Check whether compressor defect or Inverter PBA defect.
Inverter PBA
▪ Diagnosis 1 : Using inverter checker
1. Power Off
2. Wait more than 15 minutes after the Power Off as in case of IPM failure,
discharge mode may not work properly.
3. Connect inverter checker(Phase checker)(U : RED / V : WHT / W : BLK)
4. Execute inverter checker function in OUD main PBA.
5. If any LED is not blinking → PBA defect → Change PBA
OK
Inverter PBA
st
1
visit
order
Samsung Electronics
NG
NG
2
visit
nd
3
rd
PBA replace
Check with
Order comp
Inverter checker
E461/464 / 466
E361/364 / 366
Comp order
visit
2
visit
nd
Comp replace
4
visit
th
Completion
Comp replace
166
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