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Table 8. Alarm Codes
Event
Code
ActionDisplay Message
Event
Code
90 ALARM(90) CONTROLLER PROBLEM INTERNAL CONTROLLER PROBLEM. RESET TO CLEAR.
91 ALARM(91) OUTDOOR ENTH SENSOR A7 CHECK ECON DIP SWITCH AND ENTH DIAL SETTINGS, SENSOR AND WIRING
92 ALARM(92) INDOOR ENTH SENSOR A62 CHECK ECON DIP SWITCH AND ENTH DIAL SETTINGS, SENSOR AND WIRING
93 ALARM(93) BACKUP MODE CHECK COMM LOSS WITH NETWORK SENSOR
94 ALARM(94) BAD ZONE SENSOR SETPOINT CHECK SETPOINT AND EMS PROGRAMMING
95 ALARM(95) SETTINGS HAVE CHANGES SETTINGS HAVE CHANGED AT THE UNIT
96, 97 Reserved
98 ALARM(98) CONTROLLER PROBLEM INTERNAL CONTROLLER PROBLEM. RESET TO CLEAR.
99 ALARM(99) OUTDOOR ECON SENSOR A24 CHECK SENSOR AND WIRING
100 ALARM(100) AIR VOL CONTROL SETUP ERROR CHECK FOR PROPER INSTALLATION OF GP BOARD AND SETTINGS
101 ALARM(101) MGV CONTROL SETUP ERROR CHECK FOR PROPER INSTALLATION OF GP BOARD AND SETTINGS
102 ALARM(102) GP CONTROL SETUP ERROR CHECK FOR PROPER INSTALLATION OF GP BOARD AND SETTINGS
103 ALARM(103) ADVANCED CONTROL SETUP ERROR CHECK PRODIGY SETTINGS
104 Reserved
105 ALARM(105) ADVANCED ECON CONTROL SETUP ERROR CHECK ECON SWITCHES, DIALS, AND PRODIGY SETTINGS
106 ALARM(106) BUILDING PRESS SENSOR A34 CHECK SENSOR AND WIRING
107 ALARM(107) DUCT SUPPLY PRESS SENSOR A30 CHECK SENSOR AND WIRING
108 ALARM(108) DUCT SUPPLY HIGH PRESS SENSOR A30 CHECK SENSOR AND WIRING
109 ALARM(109) STRIKE 3 DUCT SUPPLY PRESS SENSOR A30 CHECK SENSOR AND WIRING
110 ALARM(110) WAITING ON NETWORK DATA CHECK NETWORK OR COMFORT SENSOR AND WIRING
111 ALARM(111) CONTROLLER PROBLEM INTERNAL CONTROLLER PROBLEM. RESET TO CLEAR.
112 ALARM(112) CONTROLLER PROBLEM INTERNAL CONTROLLER PROBLEM. RESET TO CLEAR.
113 Reserved
114 ALARM(114) CONTROLLER PROBLEM POWER NOISE PROBLEM. RESET TO CLEAR.
115 ALARM(115) UNIT OFFLINE FOR TEST CHECK PRODIGY SERVICE TEST MODE
116&117 Reserved
118 ALARM(118) NO DISPLAY DISPLAY NOT DETECTED
119 STATUS(119) RESET CAUSED BY WATCHDOG TIMEOUT CONTACT LENNOX
120 ALARM(120) ADD-ON BOARD MCB PROBLEM MCB CONFIGURATION SETUP PROBLEM. RESET TO CLEAR OR ADVANCED SETUP.
121 ALARM(121) LINE FREQ DOES NOT MATCH UNIT CONFIG
122 ALARM(122) 24VAC PRIMARY VOLTAGE LOW
123 ALARM(123) 24VAC PRIMARY VOLTAGE HIGH
124 ALARM(124) 24VAC SECONDARY VOLTAGE LOW
125 ALARM(125) 24VAC SECONDARY VOLTAGE HIGH
126 ALARM(126) LINE PHASING DOES NOT MATCH UNIT CONFIG
127 Reserved
128 ALARM(128) 24VAC POWER LOSS
129 ALARM(129) VFD SHUTDOWN VFD FAULT DETECTED. CHECK BELT AND FOR BLOWER OVERLOAD. FIX SOURCE OF FAULT AND RESET M2.
130 ALARM(130) VFD BYPASS ENGAGED VFD BYPASS MODE IS ENGAGED. BLOWER MAY OR MAY NOT BE ON. DISENGAGE AT MSAV MENU.
131 Reserved
132 ALARM(132) VFD BYPASS NOT CONFIGURED VFD BYPASS MODE HAS NOT BEEN SELECTED. UNIT OPERATES AS IF BYPASS IS NOT INSTALLED.
133 ALARM(133) CHECKING POWER M2 UNABLE TO DETERMINE CORRECT PHASE/VOLTAGE.
134 ALARM(134) LOW SUPPLY CFM
SMARTAIRFLOW™ ENABLED RTU INDICATES AIRFLOW TARGET CANNOT BE ACHIEVED. CHECK CAUSE OF
AIRFLOW REDUCTION SUCH AS DIRTY FILTER, CHANGES IN DUCT WORK, ETC
135 ALARM(135) NO AIRFLOW BLOWER RPM IS TOO LOW AS INDICATES BY BLOWER STATUS. THIS MEANS THAT THE BLOWER IS NOT WORKING."
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