Diagnosis by Malfunction Code Si-95
76 Troubleshooting Inverter K Series
1.2 Failure Diagnosis
1.2.1 Inverter Failure Diagnosis
1.2.2 Failure Diagnosis for Optional Controllers for Centralized Control
Malfunction code Malfunction contents Fan operation Page
L4 Outdoor unit: Malfunction of inverter radiating fin temperature rise 8 115
L5 Outdoor unit: Inverter instantaneous over-current 8 116
L8 Outdoor unit: Inverter electronic thermal, compressor overload 8 117
L9 Outdoor unit: Inverter stall prevention, compressor seizing 8 118
LC Outdoor unit: Malfunction of transmission between inverter and
control PC board
8 119
P1 Outdoor unit: Inverter over-ripple protection 8 121
P4 Outdoor unit: Malfunction of inverter radiating fin temperature rise
sensor
8 122
Malfunction code Optional controllers for
centralized control
Malfunction contents Page
UE Central remote controller
Schedule timer
Malfunction of transmission between central remote
controller and indoor unit
123
128
M1 Central remote controller
Schedule timer
PC board defect 124
129
M8 Central remote controller
Schedule timer
Malfunction of transmission between optional
controllers for centralized control
125
130
MA Central remote controller
Schedule timer
Improper combination of optional controllers for
centralized control
126
131
MC Central remote controller
Schedule timer
Address duplication, improper setting 127
132
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Unified ON/OFF controller Operation lamp blinks 133
Display “under host computer integrate control” blinks
(repeats single blink)
134
Display “under host computer integrate control” blinks
(repeats double blink)
136
SI-95.BOOK Page 76 Friday, March 31, 2000 10:59 AM
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