Daikin VRV IV+ Service Manual page 5

https://daikin-p.ru/catalog/vrv-daikn/naruzhnye-vrv-bloki-daikin
2.3.86 L9-13-14-15 - Inverter PCB A3P output phase
abnormality ................................................................. 44
2.3.87 L9-16-17-18 - Inverter PCB A6P output phase
abnormality ................................................................. 44
2.3.88 LC-01 - Transmission abnormality ............................. 45
2.3.89 LC-14-15-16 - Transmission abnormality main PCB/
inverter PCB A3P........................................................ 45
2.3.90 LC-19-20-21 - Transmission abnormality main PCB/
fan inverter PCB A4P.................................................. 45
2.3.91 LC-24-25-26 - Transmission abnormality main PCB/
fan inverter PCB A7P.................................................. 46
2.3.92 LC-30-31-32 - Transmission abnormality main PCB/
inverter PCB A6P........................................................ 46
2.3.93 P1-01-02-03 - Open phase or unbalanced power
supply detection by inverter PCB A3P ........................ 47
2.3.94 P1-07-08-09 - Open phase or unbalanced power
supply detection by inverter PCB A6P ........................ 47
2.3.95 P2-00 - Refrigerant auto-charge interrupted .............. 47
2.3.96 P4-01-04-05 - Fin thermistor abnormality on inverter
PCB A3P..................................................................... 48
2.3.97 P4-02-15-17 - Fin thermistor abnormality on fan
inverter PCB A4P........................................................ 48
2.3.98 P4-03-16-18 - Fin thermistor abnormality on fan
inverter PCB A7P........................................................ 48
2.3.99 P4-06-07-08 - Fin thermistor abnormality on inverter
PCB A6P..................................................................... 49
2.3.100 P8-00 - Freeze-up during refrigerant auto-charge ..... 49
2.3.101 P9-00 - Refrigerant auto-charge finished normally .... 49
2.3.102 PA-00 - No refrigerant in refrigerant cylinder during
auto-charge................................................................. 50
2.3.103 PE-00 - Refrigerant auto-charge in last stage............ 50
2.3.104 PF-00 - Long test run failed........................................ 50
2.3.105 PJ-04-05-06 - Capacity setting mismatch for inverter
PCB A3P..................................................................... 50
2.3.106 PJ-09-15-16 - Capacity setting mismatch for fan
inverter PCB A4P........................................................ 50
2.3.107 PJ-10-17-18 - Capacity setting mismatch for fan
inverter PCB A7P........................................................ 51
2.3.108 PJ-12-13-14 - Capacity setting mismatch for inverter
PCB A6P..................................................................... 51
2.3.109 U0-05 - Refrigerant shortage detection...................... 51
2.3.110 U0-06 - Refrigerant shortage detection...................... 52
2.3.111 U0-08-09-10 - Refrigerant shortage detection by
high pressure sensor .................................................. 52
2.3.112 U1-01-05-07 - Reverse phase detection .................... 53
2.3.113 U1-04-06-08 - Reverse phase detection .................... 53
2.3.114 U2-01-08-11 - Inverter circuit power supply
abnormality - inverter PCB A3P abnormal voltage ..... 53
2.3.115 U2-02-09-12 - Inverter circuit power supply
abnormality - inverter PCB A3P phase loss................ 54
2.3.116 U2-03-10-13 - Inverter circuit power supply
abnormality - inverter PCB A3P DC circuit not
charging ...................................................................... 54
2.3.117 U2-22-25-28 - Inverter circuit power supply
abnormality - inverter PCB A6P abnormal voltage ..... 55
2.3.118 U2-23-26-29 - Inverter circuit power supply
abnormality - inverter PCB A6P phase loss................ 55
2.3.119 U2-24-27-30 - Inverter circuit power supply
abnormality - inverter PCB A6P DC circuit not
charging ...................................................................... 56
2.3.120 U3-02 - Test run interrupted manually ....................... 56
2.3.121 U3-03 - Test run not performed yet............................ 57
2.3.122 U3-04 - Test run ended abnormally ........................... 57
2.3.123 U3-05 - Test run aborted on initial transmission ........ 57
2.3.124 U3-06 - Test run aborted on normal transmission...... 57
2.3.125 U3-07 - Transmission abnormality on test run ........... 58
2.3.126 U3-08 - Transmission abnormality on test run ........... 58
2.3.127 U4-01 - Communication error on Q1-Q2
transmission line ......................................................... 58
2.3.128 U4-03 - Communication error on F1-F2 transmission
line .............................................................................. 58
2.3.129 U4-15 - Unable to start test run.................................. 59
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ Heat Pump
ESIE18-14 - 2019.07
2.3.130 U7-01 - Transmission abnormality between systems
- DTA104A61,62 error.................................................. 59
2.3.131 U7-02 - Transmission abnormality between systems
- DTA104A61,62 error.................................................. 59
2.3.132 U7-03 - Transmission abnormality between main
outdoor unit and sub 1 outdoor unit ............................. 60
2.3.133 U7-04 - Transmission abnormality between main
outdoor unit and sub 2 outdoor unit ............................. 60
2.3.134 U7-05 - Multi system abnormality................................ 60
2.3.135 U7-06 - Multi system address abnormality.................. 61
2.3.136 U7-07 - More than 3 outdoor units on Q1-Q2
transmission................................................................. 61
2.3.137 U7-11 - Excess indoor units detected on test run ....... 61
2.3.138 U7-24 - Duplication of address setting on multiple
DTA104A61,62 installation .......................................... 61
2.3.139 U9-01 - Other indoor unit has error ............................. 61
2.3.140 UA-00 - Combination abnormality ............................... 62
2.3.141 UA-03 - Combination abnormality - Mix of R22,
R407C and R410A type units detected........................ 62
2.3.142 UA-16 - Combination abnormality - More than 64
indoor units detected on same system ........................ 62
2.3.143 UA-17 - Combination abnormality - Local setting
abnormality .................................................................. 62
2.3.144 UA-18 - Combination abnormality - Outdoor unit not
compatible with indoor units (refrigerant type) ............. 63
2.3.145 UA-19 - Combination abnormality - Local set alarm ... 63
2.3.146 UA-20 - Combination abnormality - Non-compatible
outdoor unit in multi-combination ................................. 63
2.3.147 UA-21 - Combination abnormality - BPMK units
detected ....................................................................... 63
2.3.148 UA-31 - Combination abnormality - Multi
combination abnormality .............................................. 63
2.3.149 UA-38 - Combination abnormality - Altherma hydro
unit detected ................................................................ 64
2.3.150 UA-39 - Combination abnormality - Incorrect
combination.................................................................. 64
2.3.151 UA-49 - Combination abnormality - Wrong unit
combination.................................................................. 64
2.3.152 UF-01 - Wiring and piping mismatch - Auto address
inconsistency on F1-F2 transmission........................... 64
2.3.153 UF-05 - Wiring and piping mismatch - Stop valves
closed or incorrect........................................................ 64
2.3.154 UF-11 - Wiring and piping mismatch - Excess
connection ratio............................................................ 65
2.3.155 UH-01-02 - Auto-address failure ................................. 65
2.3.156 E-1 - Refrigerant leak check is not possible................ 65
2.3.157 E-2 - Refrigerant leak check cannot be performed -
indoor air temperature is out of range.......................... 66
2.3.158 E-3 - Refrigerant leak check cannot be performed -
outdoor air temperature is out of range........................ 66
2.3.159 E-4 - Refrigerant leak check is interrupted - too low
pressure is detected..................................................... 66
2.3.160 E-5 - Refrigerant leak check cannot be performed -
a unit which is not compatible with leak detection
function is installed....................................................... 66
2.3.161 NG - Refrigerant leak check function detects
refrigerant leak ............................................................. 66
2.3.162 OK - Refrigerant leak check function detects no
refrigerant leak ............................................................. 67
2.3.163 Indoor unit related error codes..................................... 68
2.3.164 Overview of error codes............................................... 69
2.4 Symptom based troubleshooting................................................ 73
2.4.1 Normal operating conditions ........................................ 73
2.4.2 Symptom: The system does not operate ..................... 73
2.4.3 Symptom: Cool/Heat cannot be changed over ............ 73
2.4.4 Symptom: Fan operation is possible, but cooling and
heating do not work...................................................... 73
2.4.5 Symptom: The fan speed does not correspond to the
setting .......................................................................... 73
2.4.6 Symptom: The fan direction does not correspond to
the setting .................................................................... 73
2.4.7 Symptom: White mist comes out of a unit (Indoor
unit) .............................................................................. 73
Table of contents
Service manual
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