Carrier Touch Pilot Manual page 31

No. Code Alarm description
12 15018 Circuit A Condenser Subcooling Liquid
Thermistor
13 15019 Circuit B Condenser Subcooling Liquid
Thermistor
14 15021 Space Temperature Thermistor
15 15024 Circuit A Economizer Gas Thermistor
16 15025 Circuit B Economizer Gas Thermistor
17 15026 Circuit C Economizer Gas Thermistor
Transducer failures
18 12001 Circuit A Discharge Transducer
19 12002 Circuit B Discharge Transducer
20 12003 Circuit C Discharge Transducer
21 12004 Circuit A Suction Transducer
22 12005 Circuit B Suction Transducer
23 12006 Circuit C Suction Transducer
24 12010 Circuit A Oil Pressure Transducer
25 12011 Circuit B Oil Pressure Transducer
26 12012 Circuit C Oil Pressure Transducer
27 12013 Circuit A Economizer Pressure Transducer
28 12014 Circuit B Economizer Pressure Transducer
29 12015 Circuit C Economizer Pressure Transducer
Communication failures
30 4101 Loss of communication with Compressor
Board A
31 4201 Loss of communication with Compressor
Board B
32 4301 Loss of communication with Compressor
Board C
33 4901 Loss of communication with SIOB Board A
34 4902 Loss of communication with SIOB Board B
35 4903 Loss of communication with SIOB Board C
36 4906 Loss of communication with SIOB Board
EMM
37 4907 Loss of communication with SIOB Board
DGT
38 4501 Loss of communication with Aux Board
Number 1 (leak detection option board)
Process failures and other
39 10001 Cooler Freeze Protection
40 10002 Circuit A Condenser Freeze
41 10003 Circuit B Condenser Freeze
42 10004 Circuit C Condenser Freeze
43 10005 Circuit A Low Suction Temperature
44 10006 Circuit B Low Suction Temperature
45 10007 Circuit C Low Suction Temperature
Reset type
Automatic, if thermistor
reading returns to normal
As above
As above
As above
As above
Not applicable to this unit
Automatic, if sensor voltage
reading returns to normal
As above
Not applicable to this unit
Automatic, if sensor voltage
reading returns to normal
As above
Not applicable to this unit
Automatic, if sensor voltage
reading returns to normal
As above
Not applicable to this unit
Automatic, if sensor voltage
reading returns to normal
As above
Not applicable to this unit
Automatic, if communication
is re-established
As above
Not applicable to this unit
Automatic, if communication
is re-established
As above
Not applicable to this unit
Automatic, if communication
is re-established
As above
As above
Manual
Automatic (if saturated
discharge temperature is
above 4.4°C) or Manual
As above
Not applicable to this unit
Automatic (the first alarm
within 24 hours) or Manual
As above
Not applicable to this unit
Action taken
Circuit A shuts down
Circuit B shuts down
Alert
Economizer function
disabled
As above
Circuit A shuts down
Circuit B shuts down
Circuit A shuts down
Circuit B shuts down
Circuit A shuts down
Circuit B shuts down
Circuit A shuts down
Circuit B shuts down
Unit shuts down
Unit shuts down
Unit shuts down
Unit shuts down
Unit shuts down
Unit shuts down
Circuit A shuts down OR
circuit B shuts down
Unit shuts down
Circuit A shuts down, but
the pump is running
Circuit B shuts down, but
the pump is running
Circuit A shuts down
Circuit B shuts down
Possible cause
Defective thermistor
As above
As above
As above
As above
Defective transducer
As above
Defective transducer
As above
Defective transducer
As above
Defective transducer
As above
Bus installation fault,
communication error
As above
Bus installation fault,
communication error
As above
Bus installation fault,
communication error
As above
As above
No water flow, defective
thermistor
Discharge pressure
transducer defective,
refrigerant leak or low
condenser water
temperature
As above
Pressure sensor
defective, EXV blocked
or lack of refrigerant
As above
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