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Error 72
Error Message Displayed to user
•
E72
•
Activity Zone keypad not detected.
Condition
Reported by Maintenance Interface Board board when Activity Zone keypad is not connected / detected
Cause
• Activity Zone keypad is disconnected
• Damaged cable to Activity Zone
• Damaged Activity Zone
Remedy
• Ensure that latest software is installed. Download the latest software
• Check Maintenance Interface Board to Activity Zone cable condition
• Reseat Maintenance Interface Board to Activity Zone cable connections
• Replace Activity Zone keypad
• Replace Maintenance Interface Board
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