![background image](http://html.mh-extra.com/html/daikin/arkh20cvmb7/arkh20cvmb7_service-manual_501299104.webp)
SiENBE04-512A
Service Diagnosis
95
Part 6
Service Diagnosis
1. Caution for Diagnosis............................................................................96
2. Problem Symptoms and Measures .......................................................97
3. Service Check Function ........................................................................98
4. Troubleshooting ..................................................................................101
4.1
Error Codes and Description ................................................................101
4.2
Indoor Unit PCB Abnormality ...............................................................102
4.3
Freeze-up Protection Control or High Pressure Control.......................103
4.4
Fan Motor (AC Motor) or Related Abnormality.....................................105
4.5
Thermistor or Related Abnormality (Indoor Unit)..................................106
4.6
Signal Transmission Error (between Indoor and Outdoor Unit) ...........107
4.7
OL Activation (Compressor Overload) .................................................108
4.8
Compressor Lock .................................................................................109
4.9
DC Fan Lock ........................................................................................110
4.10 Input Over Current Detection ...............................................................111
4.11 Four Way Valve Abnormality................................................................112
4.12 Discharge Pipe Temperature Control...................................................114
4.13 High Pressure Control in Cooling .........................................................115
4.14 Position Sensor Abnormality ................................................................117
4.15 DC Voltage / Current Sensor Abnormality............................................118
4.16 Thermistor or Related Abnormality (Outdoor Unit) ...............................119
4.17 Electrical Box Temperature Rise..........................................................121
4.18 Radiation Fin Temperature Rise ..........................................................123
4.19 Output Over Current Detection.............................................................125
4.20 Insufficient Gas.....................................................................................127
4.21 Over-voltage Detection.........................................................................129
5. Check ..................................................................................................130
5.1
How to Check .......................................................................................130
SiENBE04-512A.book Page 95 Friday, October 5, 2007 1:49 PM
Summary of Contents for ARKH20CVMB7
Page 1: ...SiENBE04 512A Service Manual Inverter Pair Wall Mounted Type C Series D Series ...
Page 17: ...List of Functions SiENBE04 512A 8 List of Functions ...
Page 37: ...Specifications SiENBE04 512A 28 Specifications ...
Page 73: ...Control Specification SiENBE04 512A 64 Function and Control ...
Page 103: ...Instruction SiENBE04 512A 94 System Configuration ...
Page 147: ...Check SiENBE04 512A 138 Service Diagnosis ...
Page 225: ...Outdoor Unit RK X H C ARK X H C R Y N C SiENBE04 512A 216 Removal Procedure ...
Page 229: ...Others SiENBE04 512A 220 Others ...
Page 241: ...Wiring Diagrams SiENBE04 512A 232 Appendix ...