Carrier AquaEdge 23XRV Controls Operation And Troubleshooting page 30

HITS TO HITS TO
CODE RESET TYPE
ACTIVATE RESET
ALM002 5 5 AUTOMATIC
ALM004 5 5 AUTOMATIC
ALM005 5 5 AUTOMATIC
ALM007
5 5 AUTOMATIC
ALM009 5 5 AUTOMATIC
ALM011
5 5 AUTOMATIC
ALM013
5 5 AUTOMATIC
ALM015 5 5 AUTOMATIC
ALM017 5 5 AUTOMATIC
ALM019 5 5 AUTOMATIC
ALM023 5 5 AUTOMATIC
ALM025
5 5 AUTOMATIC
ALM029 5 5 AUTOMATIC
ALM033 5 5 AUTOMATIC
ALM035 5 5 AUTOMATIC
ALM041
5 5 AUTOMATIC
ALM042 5 5 AUTOMATIC
ALM101
0 0 MANUAL
Table 11 — PIC6 Alarm Codes
RESPONSE MESSAGE
Prevent Unit Startup or ALM-002 Sensor Fault -
Hard Stop Entering Chilled Water
Prevent Unit Startup or ALM-004 Sensor Fault -
Hard Stop Leaving Chilled Water
ALM-005 Sensor Fault -
Prevent Circuit Startup
Comp Discharge Temp
or Hard Stop
A
ALM-007 Sensor Fault -
Prevent Circuit Startup
Compressor Motor
or Hard Stop
Temp A
Prevent Circuit Startup ALM-009 Sensor Fault -
or Hard Stop Condenser Pressure A
Prevent Circuit Startup ALM-011 Sensor Fault -
or Hard Stop Discharge Pressure A
Prevent Circuit Startup ALM-013 Sensor Fault -
or Hard Stop Economizer Pressure A
Prevent Circuit Startup ALM-015 Sensor Fault -
or Hard Stop Economizer Temp A
Prevent Circuit Startup ALM-017 Sensor Fault -
or Hard Stop Evaporator Pressure A
ALM-019 Sensor Fault -
Prevent Circuit Startup
Evap Refrig Liquid
or Hard Stop
Temp A
Prevent Circuit Startup ALM-023 Sensor Fault -
or Hard Stop Liquid Line Press A
Prevent Circuit Startup ALM-025 Sensor Fault -
or Hard Stop Liquid Line Temp A
Prevent Circuit Startup ALM-029 Sensor Fault -
or Hard Stop Oil Supply Pressure A
Prevent Circuit Startup ALM-033 Sensor Fault -
or Hard Stop Oil Sump Pressure A
Prevent Circuit Startup ALM-035 Sensor Fault -
or Hard Stop Oil Sump Temp A
Prevent Unit Startup or ALM-041 Sensor Fault -
Hard Stop Vaporizer Temp Cir A
ALM-042 Sensor Fault -
Prevent Unit Startup or
Condenser Liquid Level
Hard Stop
Input A
Prevent Unit Startup or ALM-101 LEN Scan
Hard Stop Error
TRIP CONDITION
Entering chilled water temperature
(TEMP_ECW) is outside range.
Leaving chilled water temperature
(TEMP_LCW) is outside range.
Compressor discharge temperature
(TEMP_DGT_A) is outside range.
Compressor motor temperature
(TEMP_MTRW_A) is outside range.
Condenser pressure
(PRESSURE_CND_P_A) is outside
range.
Discharge pressure
(PRESSURE_DIS_P_A) is outside
range.
Economizer pressure
(PRESSURE_ECO_P_A) is outside
range.
Economizer temperature
(TEMP_ECO_T_A) is outside range.
Evaporator pressure
(PRESSURE_EVAP_P_A) is outside
range.
Evaporator refrigerant temperature
(TEMP_EVAP_T_A) is outside
range.
Liquid line pressure
(PRESSURE_LIQ_P_A) is outside
range.
Liquid line temperature
(TEMP_LIQ_T_A) is outside range.
Oil Supply Pressure
(PRESSURE_OIL_DP_A) is outside
range.
Oil Sump Pressure
(PRESSURE_OILPSMPA) is outside
range.
Oil Sump temperature
(TEMP_OILTSMPA) is outside
range.
Vaporizer temperature
(TEMP_VAP_TEMP) is outside
range.
Units with TP compressors only.
Condenser liquid level sensor voltage
is outside the normal range.
An error was detected in the LEN
serial driver
30
TROUBLESHOOTING
Verify continuity to appropriate board.
Verify voltage and ohm reading
across sensor. Replace sensor if
ohm reading is incorrect based on
temperature.
Verify continuity to appropriate board.
Verify voltage and ohm reading
across sensor. Replace sensor if
ohm reading is incorrect based on
temperature.
Verify continuity to appropriate board.
Verify voltage and ohm reading
across sensor. Replace sensor if
ohm reading is incorrect based on
temperature.
Verify continuity to appropriate board.
Verify voltage and ohm reading
across sensor. Replace sensor if
ohm reading is incorrect based on
temperature.
Check 5V supply from board. Check
transducer output and ground.
Replace transducer if voltage checks
out good.
Check 5V supply from board. Check
transducer output and ground.
Replace transducer if voltage checks
out good.
Check 5V supply from board. Check
transducer output and ground.
Replace transducer if voltage checks
out good.
Verify continuity to circuit board.
Verify voltage and ohm reading
across sensor. Replace sensor if
ohm reading is incorrect based on
temperature.
Check 5V supply from board. Check
transducer output and ground.
Replace transducer if voltage checks
out good.
Verify continuity to circuit board.
Verify voltage and ohm reading
across sensor. Replace sensor if
ohm reading is incorrect based on
temperature.
Check 5V supply from board. Check
transducer output and ground.
Replace transducer if voltage checks
out good.
Verify continuity to circuit board.
Verify voltage and ohm reading
across sensor. Replace sensor if
ohm reading is incorrect based on
temperature.
Check 5V supply from board. Check
transducer output and ground.
Replace transducer if voltage checks
out good.
Check 5V supply from board. Check
transducer output and ground.
Replace transducer if voltage checks
out good.
Verify continuity to circuit board.
Verify voltage and ohm reading
across sensor. Replace sensor if
ohm reading is incorrect based on
temperature.
Verify continuity to circuit board.
Verify voltage and ohm reading
across sensor. Replace sensor if
ohm reading is incorrect based on
temperature.
Verify level sensor resistance.
Resistance between red and black
wires across the sensor should be
approximately 1800 ohms when
unconnected.
Cycle power.