46
T H E C O N T R O L S Y S T E M
T R O U B L E S H O O T I N G
Troubleshooting:
No Keypad Input
YES
NO
Replace
Display Keypad.
(page 35)
If the problem
persists, replace the
I/O Control Board.
(page 39)
Is the keypad cable properly connected
to the I/O Control Board?
Correct wiring.
