Lennox Prodigy M2 Application Manual page 63

Code Display Message
ALARM(31) STRIKE 3 UNIT SHUT-
31
DOWN S149
ALARM(32) COMP 1 FRZSTAT OPEN
32
S49
ALARM(33) STRIKE 3 COMP 1
33
FRZSTAT OPEN S49
ALARM(34) COMP 2 FRZSTAT OPEN
34
S50
ALARM(35) STRIKE 3 COMP 2
35
FRZSTAT OPEN S50
ALARM(36) COMP 3 FRZSTAT OPEN
36
S53
ALARM(37) STRIKE 3 COMP 3
37
FRZSTAT OPEN S53
ALARM(38) COMP 4 FRZSTAT OPEN
38
S95
ALARM(39) STRIKE 3 COMP 4
39
FRZSTAT OPEN S95
ALARM(40) RETURN AIR OVER
40
HEAT LIMIT RT16
ALARM(41) RETURN AIR UNDER
41
COOL LIMIT RT16
ALARM(42) UNIT SHUTDOWN S42
42
OR S135
ALARM(43) STRIKE 3 UNIT SHUT-
43
DOWN S42 OR S135
ALARM(44) GAS VALVE ON NO DE-
44
MAND GV1
ALARM(45) GAS VALVE ON NO DE-
45
MAND GV3
46 −
Reserved
49
ALARM(50) PRIMARY HEAT 1 LIMIT
50
OPEN S10
ALARM(51) STRIKE 3 PRIMARY
51
HEAT 1 LIMIT OPEN S10
ALARM(52) SECONDARY HEAT 1
52
LIMIT OPEN S21
ALARM(53) STRIKE 3 SECONDARY
53
HEAT 1 LIMIT OPEN S21
54 ALARM(54) HEAT 1 ROLL OUT OPEN
ALARM(54) HEAT 1 S15 LIMIT OPEN
ALARM(55) STRIKE 3 HEAT 1 ROLL
55
OUT OPEN
ALARM(55) STRIKE 3 HEAT 1 S15
LIMIT OPEN
56 ALARM(56) HEAT 1 CAI SWITCH S18
ALARM(57) STRIKE 3 HEAT 1 CAI
57
SWITCH S18
ALARM(58) HEAT 1 NO PROOF GAS
58
VALVE GV1
ALARM(59) STRIKE 3 NO PROOF
59
GAS VALVE GV1
ALARM(60) PRIMARY HEAT 2 LIMIT
60
OPEN S99
ALARM(61) STRIKE 3 PRIMARY
61
HEAT 2 LIMIT OPEN S99
Action
CHECK OVERFLOW SW
COMP OFF. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER, OUT-
SIDE TEMP
COMP LOCKOUT. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER,
OUTSIDE TEMP
COMP OFF. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER, OUT-
SIDE TEMP
COMP LOCKOUT. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER,
OUTSIDE TEMP
COMP OFF. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER, OUT-
SIDE TEMP
COMP LOCKOUT. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER,
OUTSIDE TEMP
COMP OFF. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER, OUT-
SIDE TEMP
COMP LOCKOUT. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER,
OUTSIDE TEMP
HEAT ABOVE SETPOINT. CHECK SPACE CONDITIONS OR SENSOR
COOL BELOW SETPOINT. CHECK SPACE CONDITIONS OR SENSOR
CHECK EXT MTR OVERLOADS
CHECK EXT MTR OVERLOADS
UNIT OFF. GV1 POWER BUT NO DEMAND. CHECK GAS PRESS, GAS
VALVE
UNIT OFF. GV3 POWER BUT NO DEMAND. CHECK GAS PRESS, GAS
VALVE
HEAT SECT 1 PRIMARY HEAT LIMIT OPEN. CHECK AIR FLOW, LIMIT,
AND WIRING.
HEAT SECT 1 PRIMARY HEAT LIMIT OPEN. CHECK AIR FLOW, LIMIT,
AND WIRING.
HEAT SECT 1 SECONDARY HEAT LIMIT OPEN. CHECK AIR FLOW, LIMIT,
AND WIRING.
HEAT SECT 1 SECONDARY HEAT LIMIT OPEN. CHECK AIR FLOW, FIL-
TER, LIMIT, AND WIRING.
HEAT SECT 1 CHECK GAS ROLL OUT S47
HEAT SECT 1 LIMIT OPEN. CHECK AIR FLOW, LIMIT, AND WIRING.
HEAT SECT 1 CHECK GAS ROLL OUT S47
HEAT SECT 1 LIMIT OPEN. CHECK AIR FLOW, LIMIT, AND WIRING.
HEAT SECT 1 CHECK COMBUSTION AIR MOTOR & PROOF SWITCH
HEAT SECT 1 OFF CHECK COMBUSTION AIR MOTOR & PROOF SWITCH
HEAT SECT 1 CHECK IGNITION CONTROL, FLAME PROOF, GV1, GAS
SUPPLY
HEAT SECT 1 CHECK IGNITION CONTROL, FLAME PROOF, GV1, GAS
SUPPLY
HEAT SECT 2 PRIMARY HEAT LIMIT OPEN. CHECK AIR FLOW, LIMIT,
AND WIRING.
HEAT SECT 2 PRIMARY HEAT LIMIT OPEN. CHECK AIR FLOW, LIMIT,
AND WIRING.
Page 63
16. Diagnostics
table continued on next page
PRODIGYT M2 UNIT CONTROLLER