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30
JBus
code
Alarm
code
Alarm description
Reset type
Action taken
Possible cause
66
10031
Emergency stop
Automatic
Unit shuts down
Network emergency
stop command
67
10032
Evaporator pump 1 fault
Manual
Unit shuts down
Pump overheats or
poor pump connection
68
10033
Evaporator pump 2 fault
Manual
Unit shuts down
As above
69
10037
High condensing temperature, circuit A
Manual
Circuit A shuts down
Defective transducer
70
10038
High condensing temperature, circuit B
Manual
Circuit B shuts down
As above
71
10050
Refrigerant leak detection
Automatic
None
Refrigerant leak or leak
detector defective
54
10067
Low oil pressure, circuit A
Automatic (three alarms in
the last 24 hours) or Manual Circuit A shuts down
Pressure sensor fault,
defective wiring or oil
filter installation fault
55
10068
Low oil pressure, circuit B
As above
Circuit B shuts down
As above
56
10070
Maximum oil filter differential pressure, circuit A
Manual
Circuit A shuts down
As above
57
10071
Maximum oil filter differential pressure, circuit B
Manual
Circuit B shuts down
As above
60
10075
Low oil level, circuit A
Automatic (three alarms in
the last 24 hours) or Manual Circuit A shuts down
Oil level too low or oil
level detector defective
61
10076
Low oil level, circuit B
As above
Circuit B shuts down
As above
74
10078
High discharge gas temperature, circuit A
Manual
Circuit A shuts down
Defective transducer,
max. condensing
temperature setpoint
too low or refrigerant
charge too high
75
10079
High discharge gas temperature, circuit B
Manual
Circuit B shuts down
As above
76
10081
Suction valve closed, circuit A
Manual
Circuit A shuts down
Economizer pressure
transducer defective,
suction valve fault
77
10082
Suction valve closed, circuit B
Manual
Circuit B shuts down
As above
58
10084
High oil filter drop pressure, circuit A
Manual
None
Pressure sensor fault,
wiring defective, oil
filter installation fault
59
10085
High oil filter drop pressure, circuit B
Manual
None
As above
80
10097
Water exchanger temperature sensors swapped
Manual
Unit shuts down
Leaving water
temperature is higher
than entering water
temperature
81
10101
High condensing temperature, circuit A
Manual
Circuit A shuts down
Defective transducer,
SST too high
82
10102
High condensing temperature, circuit B
Manual
Circuit B shuts down
As above
MAINTENANCE ALARMS
83
13nnn
Service maintenance alert
Manual
None
Preventive maintenance
date has passed
VLT DRIVE FAILURE ALARMS
84
17nnn
Compressor variable speed controller error, circuit A
Manual
Circuit A shuts down
Speed controller fault
(see section 7.6.2)
85
18nnn
Compressor variable speed controller error, circuit B
Manual
Circuit B shuts down
As above
86
20nnn
Fan A1 variable speed controller error
Manual
Circuit A shuts down
As above
87
21nnn
Fan A2 variable speed controller error
Manual
Circuit A shuts down
As above
88
22nnn
Fan A3 variable speed controller error
Manual
Circuit A shuts down
As above
89
23nnn
Fan B1 variable speed controller error
Manual
Circuit B shuts down
As above
90
24nnn
Fan B2 variable speed controller error
Manual
Circuit B shuts down
As above
91
25nnn
Fan B3 variable speed controller error
Manual
Circuit B shuts down
As above
VLT DRIVE FAILURE ALERTS
92
35nnn
Compressor variable speed controller alert, circuit A
Automatic
None
Speed controller alert
(see section 7.6.2)
93
36nnn
Compressor variable speed controller alert, circuit B
Automatic
None
As above
94
38nnn
Fan A1 variable speed controller error
Automatic
None
As above
95
39nnn
Fan A2 variable speed controller error
Automatic
None
As above
96
40nnn
Fan A3 variable speed controller error
Automatic
None
As above
97
41nnn
Fan B1 variable speed controller error
Automatic
None
As above
98
42nnn
Fan B2 variable speed controller error
Automatic
None
As above
99
43nnn
Fan B3 variable speed controller error
Automatic
None
As above
COMPRESSOR FAILURE
100
1101
Compressor A fault: High motor temperature
Manual
Circuit A shuts down
Defective wiring, open
high pressure switch
101
2101
Compressor B fault: High motor temperature
Manual
Circuit B shuts down
As above
102
1103
Compressor A fault: High pressure switch
Manual
Circuit A shuts down
As above
103
2103
Compressor B fault: High pressure switch
Manual
Circuit B shuts down
As above
SOFTWARE FAILURE
104
55001
Database module fault
Manual
Unit shuts down
Software problem.
Contact Carrier Service
105
56001
Lenscan module fault
Manual
Unit shuts down
Software problem.
Contact Carrier Service