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Table 17 — PIC 5 Alarm Codes (cont)
ALARM
CODE
(ALARMRST)
ALARM TEXT
DESCRIPTION
RESET TYPE
ACTION TAKEN
BY CONTROL
POSSIBLE CAUSE
TEMPERATURE SENSOR FAULTS (CONT)
Alm-211
ALM-211 Sensor Fault —
High Speed Comp End
Bearing Temp
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check for proper wiring between high
speed compressor end bearing tem-
perature sensor and IOB connector.
Check for disconnected, grounded, or
shorted wiring.
Check IOB channel type configurations.
Alm-212
ALM-212 Sensor Fault —
Comp Motor Winding 1
Temp
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check for proper wiring between com-
pressor motor temp 1 sensor and IOB
connector.
Check for disconnected, grounded, or
shorted wiring.
Check IOB channel type configurations.
Alm-213
ALM-213 Sensor Fault —
Comp Motor Winding 2
Temp
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check for proper wiring between com-
pressor motor temp 2 sensor and IOB
connector.
Check for disconnected, grounded, or
shorted wiring.
Check IOB channel type configurations.
Alm-214
ALM-214 Sensor Fault —
Comp Motor Winding 3
Temp
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check for proper wiring between com-
pressor motor temp 3 sensor and IOB
connector.
Check for disconnected, grounded, or
shorted wiring.
Check IOB channel type configurations.
Alm-221
ALM-220 Sensor Fault —
Thrust Bearing Oil Temp
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check wiring between Thrust Bearing
Oil Temp Sensor and IOB connector.
Check for disconnected, grounded or
shorted wiring.
Check IOB configuration.
Alm-228
ALM-228 Sensor Fault —
Common CHWS Temp
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check for proper wiring between Com-
mon CHWS Temp Sensor and IOB
connector.
Check for disconnected, grounded, or
shorted wiring.
Alm-229
ALM-221 Sensor Fault —
Common CHWR Temp
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check for proper wiring between Com-
mon CHWR Temp Sensor and IOB
connector.
Check for disconnected, grounded, or
shorted wiring.
PRESSURE TRANSDUCER FAULTS
Alm-215
ALM-215 Sensor Fault —
Condenser Pressure
Automatic if the voltage measured by
the sensor returns to normal
Unit shuts down
Check condenser pressure transducer
wiring.
Confirm that 5 v reference signal is
available between IOB connector.
Check for disconnected, grounded, or
shorted wiring.
Check for condensation in transducer
connector.
Check SW2 dip switch in IOB for the
channel configuration.
Alm-216
ALM-216 Sensor Fault —
Evaporator Pressure
Automatic if the voltage measured by
the sensor returns to normal
Unit shuts down
Check evaporator pressure transducer
wiring.
Confirm that 5 v reference signal is
available between IOB connector.
Check for disconnected, grounded, or
shorted wiring.
Check for condensation in transducer
connector.
Check SW2 dip switch in IOB for the
channel configuration.
Alm-217
ALM-217 Sensor Fault —
Economizer Pressure
Automatic if the voltage measured by
the sensor returns to normal
Unit shuts down
Check economizer pressure transducer
wiring.
Confirm that 5 v reference signal is
available between IOB connector.
Check for disconnected, grounded, or
shorted wiring.
Check for condensation in transducer
connector.
Check SW2 dip switch in IOB for the
channel configuration.