Lennox Prodigy 2.0 User Manual

Page 142
TABLE 66. PRODIGY 2.0 ALARM CODES
TYPE
ALARM
CODES
Event ActionDISPLAY MESSAGE
TYPE
ALARM
CODES
30 ALARM DRAIN PLAN OVERLFOW SHUTDOWN (S149)
Check for block drain, condensate lines and drain pan overflow switch.
Alarm set if overflow switch is detected opened and compressor will be locked out. system will automatically clear alarm
once switch is detected closed. System will resume operation (compressor lockout), after the Error Timed OFF Delay has
expired following the Overflow switch alarm clear.
31 RESERVED
32 ALARM COMP 1 FRZSTAT OPEN S49 Compressor is off. Check freezestat, air flow, charge, coil, air filter and outside air temperature.
33 ALARM STRIKE 3 COMP 1 FRZSTAT OPEN S49
Compressor is locked out. Check freezestat, air flow, charge, coil, air filter and outside air temperature.
Number of occurrences is set using Parameter 81 (MAX FREEZE SAT OCC). Default is 3 occurrences.
34 ALARM COMP 2 FRZSTAT OPEN S50 Compressor is locked out. Check freezestat, air flow, charge, coil, air filter and outside air temperature.
35 ALARM STRIKE 3 COMP 2 FRZSTAT OPEN S50
Compressor is locked out. Check freezestat, air flow, charge, coil, air filter and outside air temperature.
Number of occurrences is set using Parameter 81 (MAX FREEZE SAT OCC). Default is 3 occurrences.
36 ALARM COMP 3 FRZSTAT OPEN S53 Compressor is locked out. Check freezestat, air flow, charge, coil, air filter and outside air temperature.
37 ALARM STRIKE 3 COMP 3 FRZSTAT OPEN S53
Compressor is locked out. Check freezestat, air flow, charge, coil, air filter and outside air temperature.
Number of occurrences is set using Parameter 81 (MAX FREEZE SAT OCC). Default is 3 occurrences.
38 ALARM COMP 4 FRZSTAT OPEN S95 Compressor is locked out. Check freezestat, air flow, charge, coil, air filter and outside air temperature.
39 ALARM STRIKE 3 COMP 4 FRZSTAT OPEN S95
Compressor is locked out. Check freezestat, air flow, charge, coil, air filter and outside air temperature.
Number of occurrences is set using Parameter 81 (MAX FREEZE SAT OCC). Default is 3 occurrences.
40 ALARM RETURN AIR OVER HEAT LIMIT RT16 Heat is above set point. Check space conditions and sensors.
41 ALARM RETURN AIR UNDER COOL LIMIT RT16 Cool is below set point. Check space conditions and sensors.
42 ALARM
BLOWER MOTOR OVERLOAD (S42 OR S135)
SHUTDOWN
System will set an alarm if S42 is detected as open. System will automatically clear alarm once S42 is detected closed.
System will resume operation (servicing the demands), after the Error Timed OFF Delay has expired following S42 or
S135 clear.
Check external motor overloads.
43 RESERVED
44 ALARM GAS VALVE ON NO DEMAND GV1 Unit is off. Gas valve 1 has power, but no demand. Check gas valve and wiring.
45 ALARM GAS VALVE ON NO DEMAND GV3 Unit is off. Gas valve 3 has power, but no demand. Check gas valve and wiring.
46 - 48 RESERVED
49 ALARM NO 24VAC ON A59 (C2) BOARD Third and fourth compressors are off.
50 ALARM 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 ALARM 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 occur
rences is reached.
52 ALARM 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 ALARM
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 occur
rences is reached.
54 ALARM 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 ALARM STRIKE 3 HEAT 1 ROLL OUT OPEN Heat section 1 flame roll out burner 1 switch is open. Check gas roll out switch S47. Number of occurrences is reached.
55 ALARM STRIKE 3 HEAT 1 S15 LIMIT OPEN
Heat section 1 primary electric heat limit switch is open. Check air flow, air filter, limit switch and wiring. Number of occur
rences is reached.

Lennox Prodigy 2.0 Specifications

General

Brand	Lennox
Model	Prodigy 2.0
Category	Controller
Language	English