Table of Contents
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Troubleshooting
4-4 Case study for trouble shoots (cont.)
4-4-11 Case study – Inverter PBA error
Outdoor unit display
Judgment Method
Cause of problem
Outdoor unit display
Judgment Method
Cause of problem
Samsung Electronics
(INVERTER1 PBA)
(INVERTER2 PBA)
• Will occur if the overcurrent flowing in the IPM.
• Detected by H/W or S/W
• Installation defective
• Comp. defective
• PBA defective
(INVERTER1 PBA)
(INVERTER2 PBA)
• N-phase wiring error and EMI Fuse short.
• DC-Link Overvoltage / Low voltage occurs.
• Check the input wiring
• EMI Fuse short
• Connection wire error
• Motor defective
165
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