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Table 16 — PIC6 Alarm Codes*
ALARM CODE
DESCRIPTION
OF ALARM TEXT
RESET TYPE
ACTION TAKEN BY
THE CONTROL
POSSIBLE CAUSE
ALM-200
Sensor Fault -
Leaving Chilled
Water
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring between LEAVING CHILLED WATER
Temperature Sensor and IOB connector. Check for disconnected,
grounded, or shorted wiring.
ALM-201
Sensor Fault -
Entering Chilled
Water
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring between Entering Chilled Water Sensor and
IOB connector. Check for disconnected, grounded, or shorted wiring.
ALM-202
Sensor Fault -
Leaving Cond
Water Temp
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring between Leaving Cond Water Temp Sensor
and IOB connector. Check for disconnected, grounded, or shorted
wiring.
ALM-203
Sensor Fault -
Entering Cond
Water Temp
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring between Entering Cond Water Temp Sensor
and IOB connector. Check for disconnected, grounded, or shorted
wiring.
ALM-204
Sensor Fault -
Comp Discharge
Temp
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring between Comp Discharge Temp Sensor and
connector. Check for disconnected, grounded, or shorted wiring.
ALM-205
Sensor Fault - Oil
Sump Temp
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring between Oil Sump Temp Sensor and IOB
connector. Check for disconnected, grounded, or shorted wiring.
ALM-206
Sensor Fault - Oil
Supply Temp
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring between Oil Supply Temp Sensor and IOB
connector. Check for disconnected, grounded, or shorted wiring.
ALM-207
Sensor Fault -
Evap Refrig
Liquid Temp
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring between Evap Refrig Liquid Temp Sensor and
IOB connector. Check for disconnected, grounded, or shorted wiring.
ALM-208
Sensor Fault -
Low Speed Motor
End Bearing
Temp
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring between Low Speed Motor End Bearing Temp
Sensor and IOB connector. Check for disconnected, grounded, or
shorted wiring.
ALM-209
Sensor Fault -
Low Speed
Comp End
Bearing Temp
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring between Low Speed Comp End Bearing Temp
2 Sensor and IOB connector. Check for disconnected, grounded, or
shorted wiring.
ALM-210
Sensor Fault -
High Speed
Motor End
Bearing Temp
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring between High Speed Motor End Bearing Temp
Sensor and IOB connector. Check for disconnected, grounded, or
shorted wiring.
ALM-211
Sensor Fault -
High Speed
Comp End
Bearing Temp
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring High Speed Comp End Bearing Temp Sensor
and IOB connector. Check for disconnected, grounded, or shorted
wiring.
ALM-212
Sensor Fault -
Comp Motor
Winding 1 Temp
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring between Compressor Motor Temp 1 Sensor and
IOB connector. Check for disconnected, grounded, or shorted wiring.
ALM-213
Sensor Fault -
Comp Motor
Winding 2Temp
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring between Compressor Motor Temp 2 Sensor and
IOB connector. Check for disconnected, grounded, or shorted wiring.
ALM-214
Sensor Fault -
Comp Motor
Winding 3 Temp
Automatic if the
temperature
measured by the
sensor returns to
normal
Unit shuts down.
Alarm relay turns on.
Check sensor resistance.
Check for proper wiring between Compressor Motor Temp 3 Sensor and
IOB connector. Check for disconnected, grounded, or shorted wiring.
