150
Table 65. Prodigy 2.0 Alarm and Event Codes
Selected alarms (marked with * in table result in the closure of the service relay contacts (DO1).
EVENT ACTION
DISPLAY MESSAGE
ALARM
CODE
39*
STRIKE 3 COMP 4 FRZSTAT OPEN S95
Compressor is locked out. Check freezestat, air flow, charge, coil, air filter and out
side air temperature.
Number of occurrences is set using parameter 81 (MAX FREEZE SAT OCC). De
fault is 3 occurrences.
40
RETURN AIR OVER HEAT LIMIT RT16
Heat is above set point. Check space conditions and sensors.
41
RETURN AIR UNDER COOL LIMIT RT16
Cool is below set point. Check space conditions and sensors.
42*
BLOWER MOTOR OVERLOAD (S42 OR
S135) SHUTDOWN
System will set an alarm if S42 witch is detected as open. System will automatically
clear alarm once S42 switch is detected closed. System will resume operation (ser
vicing the demands), after the Error Timed OFF Delay has expired following S42 or
S135 clear.
Check external motor overloads.
43
RESERVED
44*
GAS VALVE ON NO DEMAND GV1
Unit is off. Gas valve 1 has power, but no demand. Check gas valve and wiring.
45*
GAS VALVE ON NO DEMAND GV2
Unit is off. Gas valve 2 has power, but no demand. Check gas valve and wiring.
46 - 48 RESERVED
49
NO 24VAC ON A59 (C3) CONTROL
Third and fourth compressors are off. Alarm automatically clears once 24VAC is
present. The M3 unit controller will resume operation once the ERROR TIME OFF
DELAY is completed. parameter 110 is used to set the reference delay. Factory de
lay default is 300 seconds.
50
PRIMARY HEAT 1 LIMIT OPEN S10
Heat section 1 primary gas heat limit switch is open. Check air flow, air filter, limit
switch and wiring.
51*
STRIKE 3 PRIMARY HEAT 1 LIMIT OPEN
S10
Heat section 1 primary gas heat limit switch is open. Check air flow, air filter, limit
switch and wiring. Number of occurrences is reached.
52
SECONDARY HEAT 1 LIMIT OPEN S21
Heat section 1 secondary gas heat limit switch is open. Check air flow, air filter, limit
switch and wiring.
53*
STRIKE 3 SECONDARY HEAT 1 LIMIT OPEN
S21
Heat section 1 secondary gas heat limit switch is open. Check air flow, air filter, limit
switch and wiring. Number of occurrences is reached.
54
HEAT 1 S15 LIMIT OPEN
Heat section 1 primary electric heat limit switch is open. Check air flow, air filter, limit
switch and wiring.
55*
ROLL OUT OPEN
Heat section 1 flame roll out burner 1 switch is open. Check gas roll out switch S47.
56
HEAT 1 CAI SWITCH S18
Check heat section 1 combustion air motor and proof switch.
57*
STRIKE 3 HEAT 1 CAI SWITCH S18
Check heat section 1 combustion air motor and proof switch. Number of occur
rences is reached.
58
HEAT 1 NO PROOF GAS VALVE GV1
Check heat section 1 ignition control, flame proof, gas valve 1 and gas supply.
59*
STRIKE 3 NO PROOF GAS VALVE GV1
Check heat section 1 ignition control, flame proof, gas valve 1 and gas supply. Num
ber of occurrences is reached.
60
PRIMARY HEAT 2 LIMIT OPEN S99
Check heat section 2 primary burner limit switch to see if it is open. Check air flow,
limit switch and wiring.
61*
STRIKE 3 PRIMARY HEAT 2 LIMIT OPEN
S99
Check heat section 2 primary burner limit switch to see if it is open. Check air flow,
limit switch and wiring. Number of occurrences is reached.
62
HEAT 2 LIMIT OPEN S100
Heat section 2 secondary heat limit switch is open. Check air flow, limit switch and
wiring.
63*
STRIKE 3 HEAT 2 LIMIT OPEN S100
Heat section 2 secondary heat limit switch is open. Check air flow, limit switch and
wiring. Number of occurrences is reached.
64
RESERVED
65*
HEAT 2 ROLLOUT OPEN S69
Check roll out sensor and gas supply.
66
HEAT 2 CAI SWITCH S45
Check heat section 2 combustion air motor and proof switch.
67*
STRIKE 3 HEAT 2 CAI SWITCH S45
Check heat section 2 combustion air motor and proof switch. Number of occur
rences is reached.
68
HEAT 2 NO PROOF GAS VALVE GV2
Check heat section 2 ignition control, flame roof, gas valve 2 and gas supply.
69*
STRIKE 3 NO PROOF GAS VALVE GV2
Check heat section 2 ignition control, flame roof, gas valve 2 and gas supply. Num
ber of occurrences is reached.
70 - 72 RESERVED
73
NETWORK SENSOR ERROR
Check with integrator for refresh rate, network status lights and wiring.
