Page 140
M3 Event Codes
ALARM
CODES
TYPE
TABLE 66. PRODIGY 2.0 ALARM CODES
DISPLAY MESSAGE Event Action
1 ALARM
LOSS OF POWER DETECTION (SINGLE
PHASE UNITS)
Check power connections.
The unit controller will set an alarm Erratic Power whenever service is turned off due to detection of power loss. User will
be able to clear Erratic Power alarm via User Interface. The unit controller will clear Power Erratic after the Compressor
Min OFF Delay has expired. If compressor demand is still present the unit controller will restart compressors after the
Compressor Min OFF Delay has expired.
2 - 3 RESERVED
4 ALARM SMOKE DETECTOR INPUT (A173)
A173 input is sensed as closed. will automatically clears once input is detected open. Smoke mode, check for source of
smoke. While Smoke Alarm is active, the unit controller will not service any cooling, heating or ventilation demand.
5 ALARM BLOWER S52
Unit off. Air flow switch is normally closed. Monitoring starts 16 Seconds after blower is started. if air flow switch is detec
ted open after 16 second delay period, all compressors are de-energized, gas valves closed, electric heat turned off, eco
nomizer damper closed, and blower is stopped. alarm will automatically clear once the error timed off delay has expired
and system will resume. Check blower operation.
6 ALARM DIRTY FILTER SWITCH S27
Dirty filter switch is detected as closed. will automatically clear once switch is detected open. Replace filter or check filter
switch S27 .
7 RESERVED
8 ALARM STRIKE 3 ON BLOWER S52
Lockout, multiple alarm code 5 detected. alarm can be manually cleared via the user interface. Check blower operation.
once problem is corrected, lockout alarm can be cleared by resetting the unit controller.
9 - 11 RESERVED
12 ALARM
COMP 1 HIGH PRESS S4 OR COMP 1 HI
TEMP S5
Compressor is off. Check charge, fans and coil.
NOTE: On Ultra High Efficiency units - if only alarm 12 is present then issue could be high temperature S5. IF alarm 12 is
accompanied with alarm 14 then most likely high pressure S4.
The unit controller will clear High pressure Switch alarm when corresponding High Pressure Switch is detected as closed.
Compressor will not be restarted until corresponding High Pressure Switch is closed and Minimum Off Delay (Cooling or
Heating) has expired.
13 ALARM
STRIKE 3 ON COMP 1 HIGH PRESS S4 OR
COMP 1 HI TEMP S5
Compressor lockout. Check charge, fans and coil. Use service menu to clear lockouts.
User will be able to clear high pressure switch compressor lockout and alarm via user interface. High pressure switch
compressor lockout and alarm will be cleared after the M3 unit controller reset.
High pressure switch compressor lockout and alarm will be cleared on termination of cooling demand.
Default is 3 occurrences and can be set between 1 and 7 occurrences.
14 ALARM COMP 2 HIGH PRESS S7
Compress is off. Check charge, fans and coil.
Note: On Ultra High Efficiency Units tandem alarms (14) Compressor 2 High Temperature S8. If accompanied with alarm
15 then most likely the S4 High Pressure Switch
The unit controller will clear High pressure Switch alarm when corresponding High Pressure Switch is detected as closed.
Compressor will not be restarted until corresponding High Pressure Switch is closed and Minimum Off Delay (Cooling or
Heating) has expired.
15 ALARM STRIKE 3 ON COMP 2 HIGH PRESS S5 OR S7
Compressor lockout. Check charge, fans and coil. Use service menu to clear lockouts.
User will be able to clear high pressure switch compressor lockout and alarm via user interface. High pressure switch
compressor lockout and alarm will be cleared after the M3 unit controller reset.
High pressure switch compressor lockout and alarm will be cleared on removal of cooling demand.
Default is 3 occurrences and can be set between 1 and 7 occurrences.
To Next Page
Loading...
Need help?
General
