3 PB
Error Code 2 69
Error Code 6 69
Error Code 19 70
Error Code 36 72
Blank Display/ Indoor Micro Switch 75
COMPONENTS TESTING 77
Compressor 77
EEV Stepper Coil 78
Indoor Fan Motor 79
Reversing Valve 81
Checking the Reversing Valve 81
Checking The Reversing Valve Solenoid 81
Indoor Unit Main PCB Terminal ID 82
Outdoor Unit - Main PCB ID 83
FPHSR09A3B, FPHSR12A3B 83
FPHSR18A3B 84
FPHSR24A3B 85
R-454B SEALED SYSTEM REPAIR 86
General Information 86
Required Equipment 88
Refrigerant Removal, Recovery, and Evacuation 89
Component Replacement/Brazing 90
Refrigerant Charging 91
Triple Evacuation 92
Compressor Replacement 93
Replace The Reversing Valve 94
WIRING DIAGRAMS 95
Indoor Unit 95
FAHFW09A3A, FAHFW12A3A, FAHFW18A3A, FAHFW24A3A 95
Outdoor Unit 96
FPHSR09A3B, FPHSR12A3B, FPHSR18A3B 96
FPHSR4A3B 97
APPENDIX 98
Interactive Parts Viewer 98
Limited Warranty 98
Thermistor Resistance Values 99
Friedrich Authorized Parts Depots 103
TABLE OF CONTENTS
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