Rotenso ANERU Series, Service Manual

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Contents
6.10 PC 03/PC 31 (Low Pressure Protection Diagnosis and Solution) ....................33
6.11 PC 02 (Top temperature protection of compressor or High temperature
protection of IPM module Diagnosis and Solution) .......................................34
6.12 EC 0d (Outdoor unit malfunction Diagnosis and Solution) ............................35
6.13 PC 40(Communication error between outdoor main PCB and IPM board
diagnosis and solution) ................................................................................36
6.14 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
6.15 PC 0F(PFC module protection diagnosis and solution) ..................................39
6.16 EC 72 (Lack phase failure of outdoor DC fan motor diagnosis and solution) .40
6.17 PC 43 (Outdoor compressor lack phase protection diagnosis and solution) ...41
6.18 PC 45 (Outdoor unit IR chip drive failure diagnosis and solution) ..................42
6.19 PC 0L (Low ambient temperature protection) ...............................................42
6.20 PC 30 (High pressure protection diagnosis and solution) ..............................43
6.21 PC 0A (High temperature protection of condenser diagnosis and solution) ...45
6.22 PC 06 (Discharge temperature protection of compressor diagnosis and solution)
46
7. Check Procedures .................................................................................................47
Troubleshooting