Replace The Keypad - LiftMaster EL1SS Manual De Instrucciones

Replace the Keypad

1. Disconnect power to the unit.
2. Unlock the faceplate (Figure 1).
3. Disconnect all the wires from the logic board. Make note of the
wire locations for reassembly.
4. Remove the nuts (3) securing the faceplate to the housing and set
aside. Carefully remove the faceplate (Figure 2).
5. Place the faceplate on a flat surface and prop the faceplate up so
the faceplate is flat.
6. Remove the screws (4) securing the existing logic board from the
faceplate. Remove the logic board and set aside (Figure 3).
7. Remove the lock nuts (4) securing the keypad bracket to the
faceplate (Figure 4).
8. Remove the keypad and discard in accordance with local electrical
disposal guidelines (Figure 4). NOTE: If this is an in warranty
replacement, DO NOT discard the keypad. If applicable, return the
keypad to LiftMaster.
9. Secure the new keypad and keypad bracket to the faceplate using
lock nuts.
10. Place a plastic washer over each of the metal standoffs. The
plastic washers MUST be installed to prevent the stand offs from
shorting out the logic board when power is reconnected. NOTE:
To help keep the components in place, insert a toothpick or short
length of wire into the standoff and slide the components over the
toothpick or short length of wire.
11. Position the logic board on the faceplate.
12. Place a plastic washer over the mounting holes (4) in the logic
board. If applicable, carefully remove the toothpicks or short
length of wire.
13. Fasten the logic board to the faceplate with screws (4).
14. Reattach the faceplate to the housing using the previously
removed nuts (3).
15. Reconnect all the wires to the logic board.
16. Close the faceplate.
17. Reconnect power to the unit and test.
To reduce the risk of SERIOUS INJURY or DEATH:
• Disconnect electric power at the fuse box BEFORE proceeding.
• ALL electrical connections MUST be made by a qualified
individual.
• Upon completion of kit installation, the area MUST be cleared
and secured. At that time the unit may be returned to service.
Figure 1
Figure 2
Nut
Faceplate
Figure 3
Plastic
Washer
Figure 4
2
Screw
Logic Board
Lock Nut
Keypad Bracket
Keypad