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Lennox Core Unit Controller

Lennox Core Unit Controller
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48
Table 11. CORE Control System Alarm and Event Codes
SELECTED ALARMS (MARKED WITH * IN TABLE RESULT IN THE CLOSURE OF THE SERVICE RELAY CONTACTS (DO1).
ALARM
CODE
DISPLAY MESSAGE EVENT ACTION
243 UTEC VALVE FAULT LOCKOUT GV2
244 - 255 RESERVED
500 Error Reading USB Device Error Reading USB Device
501 USB Device not Mounted USB Device not Mounted
502 USB Device Full USB Device Full
503 Invalid DIN number Invalid DIN number received from M4. Indicates DIN incompatibility

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