Samsung AM080FX A Series - Case Study - Inverter PBA Error

Troubleshooting
Samsung Electronics 237
4-4-11 Case study – Inverter PBA error
Outdoor unit display
(INVERTER1 PBA)
(INVERTER2 PBA)
Judgment Method
∙ Will occur if the overcurrent flowing in the IPM.
∙ Detected by H/W or S/W
Cause of problem
∙ Installation defective
∙ Comp. defective
∙ PBA defective
∙ Connection wire error
∙ Motor defective
Outdoor unit display
(INVERTER1 PBA)
(INVERTER2 PBA)
Judgment Method
∙ N-phase wiring error and EMI Fuse short.
∙ DC-Link Overvoltage / Low voltage occurs.
Cause of problem
∙ Check the input wiring
∙ EMI Fuse short
4-4 Case study for trouble shoots (cont.)