Chamberlain LiftMaster 41C168 Manual

Carton Inventory

Transformer (1)
Mounting Plates (2)
Screws (2)

Installation

FIGURE 1:
1. Disconnect power and battery (if applicable).
2. Remove the cover.
3. Remove logic board battery plug.
4. Unplug wire harnesses from logic board.
5. Remove logic board.
6. Unplug transformer wires from power wires.
7. If you have round transformer proceed to Round Transformer.
If you have a square transformer, proceed to Square
Transformer.

ROUND TRANSFORMER (FIGURE 2):

1. If your garage door opener has a round transformer, remove
the nut and bolt from the transformer.
2. Remove the mounting plate (4 screws).
3. Replace the current mounting plate with the new mounting
plate of the matching color.
4. Attach the new transformer to mounting plate with 2 screws.
5. Reinstall parts in reverse order.

SQUARE TRANSFORMER (FIGURE 3):

1. If your garage door opener has a square transformer, remove
the 2 screws holding the transformer to the mounting plate.
2. Attach the new transformer to mounting plate with 2 screws.
3. Reinstall parts in reverse order.
Specifi cations
Volts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120Vac - 60 Hz, ONLY
Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 AMP
Rated Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325 in. lb/sec
To prevent possible SERIOUS INJURY or DEATH:
• Disconnect ALL electric and battery power BEFORE performing
ANY service or maintenance.
Figure 1
Figure 1
Figura 1
Figure 2
Figure 2
Figura 2
Figure 3
10 Cycles per Hour
Figure 3
Figura 3
1
Transformer Wires
Fils du transformateur
Cables del transformador
Power Wires
Fils d'alimentation
Cables de alimentación
Wire Harnesses
Faisceau de fils
Arnés de cables
Screws
Vis
Nut
Tornillos
Écrou
Tuerca
Transformer
Transformateur
Transformador
Transformer Kit
Model 41C168
Cover
Couvercle
Tapa
Logic Board
Circuit logique
Tarjeta lógica
Battery Plug
Prise de la pile
Enchufe de batería
BACK VIEW
VUE ARRIÈRE
VISTA TRASERA
Transformer
Transformateur
Transformador
Mounting Plate
Plaque de montage
Placa de montaje
Bolt
Boulon
Perno
Screws
Vis
Tornillos
Mounting Plate
Plaque de montage
Placa de montaje
Screws
Vis
Tornillos