Chamberlain 248730 User Manual download pdf (Page 16)

Installation

STEP 6 Install the light bulbs

To prevent possible OVERHEATING of the endpanel or light socket:

DO NOT use short neckor specialty light bulbs.

DO NOT use halogen bulbs.Use ONLY incandescent.

To prevent damage to the opener:

DO NOT use bulbs larger than 100W.

ONLY use A19 size bulbs.

1. Install a 100 watt maximum light bulb in each socket.Lightbulb size should be A19,standard

neckonly. The lightswill turn ON and remain lit for approximately 4-1/2 minutes when power is

connected. Then the lightswill turn OFF.

2. Insert bottom lens tabs into slots on chassis.Tilt towards chassis to engage top tabs,then drop

down gentlyinto place (see illustration).

3. To remove,depress both top lens tabs.Tilt lens slightly outward and down, then pull out to

clear bulbs.Use care to avoid snapping off bottom lens tabs.

4. Use A19, standard neckgarage door opener bulbs for replacement.

NOTE: Use only standard light bulbs. The use of short neck or speciality light bulbs may overheat the

endpanel or light socket.

STEP 7 Attach the emergency release rope and handle

To prevent possible SERIOUS INJURY or DEATH from a falling garage door:

• If possible, use emergencyrelease handle to disengage trolley ONLY when garage door is

CLOSED. Weak or broken springs or unbalanced door could resultin an open door falling rapidly

and/or unexpectedly.

• NEVER use emergency release handle unlessgarage doorway is clear of persons and

obstructions.

• NEVER use handle to pull door open or closed. Ifrope knotbecomes untied, you could fall.

1. Insert one end of the emergencyrelease rope through the handle. Make sure that “NOTICE” is

right side up. Tie a knot atleast 1 inch (2.5 cm) from the end of the emergencyrelease rope.

2. Insert the other end of the emergencyrelease rope through the hole in the trolley release arm.

Mount the emergencyrelease within reach, but at least6 feet(1.83 m) above floor, avoiding

contact with vehiclesto prevent accidental release and secure with a knot.

NOTE: Ifit is necessary to cut the emergency release rope, seal the cut end with a match or lighter to

prevent unraveling. Ensure the emergency release rope and handle are above the top of all vehicles to

avoid entanglement.

NOTICE

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dat mai 19 Jul 2025 | 23:16:05

help me to setup door opener

Chamberlain 248730 User Manual Page 16