Service Manual -
B-VMHxxAV-1
Contents
7.11 PC 02 (Top temperature protection of compressor or High temperature
protection of IPM module Diagnosis and Solution) .......................................34
7.12 EC 0d (Outdoor unit malfunction Diagnosis and Solution) ............................35
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 PC 30 (High pressure protection diagnosis and solution) ..............................43
7.21 PC 0A (High temperature protection of condenser diagnosis and solution) ...45
7.22 PC 06 (Discharge temperature protection of compressor diagnosis and solution)
46
7.23 EH 0b (Communication error between indoor two chips Diagnosis and Solution)
47
7.24 EL 16(Communication malfunction between adapter board and outdoor main
board diagnosis and solution) ......................................................................48
7.24 FL 09(Indoor and outdoor mismatch malfunction diagnosis and solution) ....48
7.25 PC 41(Putdoor compressor current sampling circuit failurediagnosis and solution)
49
7.26 EH b3 (Communication error between wired controller and indoor unit
Diagnosis and Solution) ...............................................................................49
8.
Check Procedures .................................................................................................50
Troubleshooting
Summary of Contents for Comfort-Aire Century A-VMH18SV-1
Page 30: ...Service Manual B VMHxxAV 1 ...
Page 37: ...Service Manual B VMHxxAV 1 Outdoor Unit 3 3 Panel Plate X430 Square grille ...
Page 38: ...Service Manual B VMHxxAV 1 Outdoor Unit 4 4 Panel Plate D30 Square grille ...
Page 39: ...Service Manual B VMHxxAV 1 Outdoor Unit 5 5 2 Service Place Minimim 4 Recommended 12 ...
Page 42: ...Service Manual B VMHxxAV 1 Outdoor Unit 8 8 A VMH18SV 1 A VMH24SV 1 ...
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Page 103: ...Service Manual B VMHxxAV 1 Troubleshooting 15 ...