Mars Comfort-Aire Century VCD-SA Series Service Manual page 105

Service Manual - VCDxxSA
Troubleshooting
7.13 PC 40(Communication error between outdoor main PCB and IPM board
diagnosis and solution) ................................................................................36
7.14 PC 08(Current overload protection)/PC 44(Outdoor unit zero speed protection)/
PC 46(Compressor speed has been out of control)/PC 49(Compressor
overcurrent failure) diagnosis and solution ...................................................37
7.15 PC 0F(PFC module protection diagnosis and solution) ..................................39
7.16 EC 72 (Lack phase failure of outdoor DC fan motor diagnosis and solution) .40
7.17 PC 43 (Outdoor compressor lack phase protection diagnosis and solution) ...41
7.18 PC 45 (Outdoor unit IR chip drive failure diagnosis and solution) ..................42
7.19 PC 0L (Low ambient temperature protection) ...............................................42
7.20 EC 55 (Outdoor IPM module temperature sensor fault Diagnosis and Solution) 42
7.21 PC 30 (High pressure protection diagnosis and solution) ..............................43
7.22 PC 0A (High temperature protection of condenser diagnosis and solution) ...45
7.23 PC 06 (Discharge temperature protection of compressor diagnosis and solution)
46
7.24 EH 0b (Communication error between indoor two chips Diagnosis and Solution)
47
7.25 EL 16(Communication malfunction between adapter board and outdoor main
board diagnosis and solution) ......................................................................48
7.25 FL 09(Indoor and outdoor mismatch malfunction diagnosis and solution) ....48
7.26 PC 41(Outdoor compressor current sampling circuit failure diagnosis and
solution) ......................................................................................................49
7.27 EH b3 (Communication error between wired controller and indoor unit
Diagnosis and Solution) ...............................................................................49
8. Check Procedures .................................................................................................50
Contents