Lennox PRODIGY M2 User Manual

16. Diagnostics
Page 62
506457−01 05/10
16. Diagnostics
16.1. M2 Event Codes
When an event occurs, the M2 Unit Controller will display a code which corresponds to control function. See table 40. Error
codes are stored and can be recalled later. See the Installation & Setup Guide For The Prodigy M2 Unit Controller for infor-
mation about viewing and silencing the alarms via the user interface.
Table 40. M2 Event Codes
Code Display Message Action
0
1 ALARM(1) ERRATIC POWER CHECK POWER CONNECTIONS
2 ALARM(2) CHECK SETTINGS
RESET CONTROLLER. CHECK UNIT SETTINGS. CONTACT LENNOX IF
PROBLEM PERSISTS.
3 Reserved
4 ALARM(4) SMOKE A173 SMOKE MODE. CHECK FOR SOURCE OF SMOKE.
5 ALARM(5) BLOWER S52
UNIT OFF. AIR FLOW SWITCH OPEN 16 SEC AFTER DEMAND. CHECK
BLOWER PARTS
6 ALARM(6) FILTER S27 REPLACE FILTER OR CHECK FILTER SWITCH S27
7 ALARM(7) CONTROLLER PROBLEM
RESET CONTROLLER. CHECK UNIT SETTINGS. CONTACT LENNOX IF
PROBLEM PERSISTS.
8
ALARM(8) STRIKE 3 ON BLOWER
S52
LOCKOUT. MULTIPLE CODE 5. CHECK BLOWER PARTS
9 − 11 Reserved
12 ALARM(12) COMP 1 HIGH PRESS S4 COMP OFF. CHECK CHARGE, FANS, COIL.
13
ALARM(13) STRIKE 3 ON COMP 1
HIGH PRESS S4
COMP LOCKOUT. CHECK CHECK CHARGE, FANS, COIL. USE SERVICE
MENU TO CLEAR LOCKOUTS.
14 ALARM(14) COMP 2 HIGH PRESS S7 COMP OFF. CHECK CHARGE, FANS, COIL.
15
ALARM(15) STRIKE 3 ON COMP 2
HIGH PRESS S7
COMP LOCKOUT. CHECK CHECK CHARGE, FANS, COIL. USE SERVICE
MENU TO CLEAR LOCKOUTS.
16
ALARM(16) COMP 3 HIGH PRESS
S28
COMP OFF. CHECK CHARGE, FANS, COIL.
17
ALARM(17) STRIKE 3 ON COMP 3
HIGH PRESS S28
COMP LOCKOUT. CHECK CHARGE, FANS, COIL. USE SERVICE MENU
TO CLEAR LOCKOUTS.
18
ALARM(18) COMP 4 HIGH PRESS
S96
COMP OFF. CHECK CHARGE, FANS, COIL.
19
ALARM(19) STRIKE 3 ON COMP 4
HIGH PRESS S96
COMP LOCKOUT. CHECK CHECK CHARGE, FANS, COIL. USE SERVICE
MENU TO CLEAR LOCKOUTS.
NOTE − Alarms 12−19 could also be caused by a high temperature condition on some compressors equipped with a high temperature shutdown.
20 ALARM(20) UNIT SHUTDOWN A42 CHECK PHASE MONITOR
21
ALARM(21) STRIKE 3 UNIT SHUT-
DOWN A42
CHECK PHASE MONITOR
22
ALARM(22) COMP 1 LOW PRESS
S87
COMP OFF. CHECK CHARGE, FILTERS, AIR FLOW. COIL
23
ALARM(23) STRIKE 3 ON COMP 1
S87
COMP LOCKOUT. CHECK CHECK CHARGE, FILTER, AIR FLOW, COIL.
USE SERVICE MENU TO CLEAR LOCKOUTS.
24
ALARM(24) COMP 2 LOW PRESS
S88
COMP OFF. CHECK CHARGE, FILTERS, AIR FLOW. COIL
25
ALARM(25) STRIKE 3 ON COMP 2
S88
COMP LOCKOUT. CHECK CHECK CHARGE, FILTER, AIR FLOW, COIL.
USE SERVICE MENU TO CLEAR LOCKOUTS.
26
ALARM(26) COMP 3 LOW PRESS
S98
COMP OFF. CHECK CHARGE, FILTERS, AIR FLOW. COIL
27
ALARM(27) STRIKE 3 ON COMP 3
S98
COMP LOCKOUT. CHECK CHECK CHARGE, FILTER, AIR FLOW, COIL.
USE SERVICE MENU TO CLEAR LOCKOUTS.
28
ALARM(28) COMP 4 LOW PRESS
S97
COMP OFF. CHECK CHARGE, FILTERS, AIR FLOW. COIL
29
ALARM(29) STRIKE 3 ON COMP 4
S97
COMP LOCKOUT. CHECK CHECK CHARGE, FILTER, AIR FLOW, COIL.
USE SERVICE MENU TO CLEAR LOCKOUTS.
30 ALARM(30) UNIT SHUTDOWN S149 CHECK OVERFLOW SW
table continued on next page

Lennox PRODIGY M2 Specifications

General

Brand	Lennox
Model	PRODIGY M2
Category	Controller
Language	English