Electrical Requirements; Complete The Safety Reversing Sensor Installation - Craftsman 139.53491SRT Owner's Manual

Installation Step 8
Electrical Requirements
To reduce the risk of electric shock, your garage door
opener has a grounding type plug with a third grounding
pin. This plug will only fit into a grounding type outlet.
If the plug doesn't fit into the outlet you have, contact a
qualified electrician to install the proper outlet.
To awdd installation th'fficulties,
do not run the opener until Step 9 below.
If permanent wiring is required by your local code,
refer to the following procedure:
I
To preventelectrocutionor fire, installationand wiring
must be in compliancewith localelectricaland building
codes.
Do NOT usean extensioncord,2-wireadapter,or change
the plugin any way to makeit fit youroutlet.
To prevent electrocution, remove power from the
garagedoor opener and from the circuit you plan to
usefor the permanent connection.
Permanent Wiring
Connection
To make a permanent connection through the 7/8" diam.
hole in the top of the opener (according to local code):
• Remove the opener cover screws and set the cover aside.
• Remove the attached 3-prong cord.
• Connect the black (line) wire to the screw on the brass
terminal; the white (neutral) wire to the screw on the
silver terminal; and the ground wire to the green
ground screw. The opener must be grounded.
• Reinstall the cover.
Ground Tab
Green
Ground Screw
Ground
White Wire BlackWire
Installation Step 9
Complete Safety Reversing Sensor
Installation
• Plug in the opener. If your door control has a Lock
feature, be sure it is off. Green indicator lights in both
the sending and receiving eyes will glow swadily if
wiring connections and alignment are correct. If the
indicator light is offin the receiving eye (and the
invisible light beam path is not obstructed), alignment is
required.
• Loosen the receiving eye wing nut to allow slight
rotation of unit. Adjust sensor vertically and/or
horizontally until the green indicator light glows with a
steady light.
• When indicator lights are glowing steadily in both units,
tighten the wing nut in the receiving eye unit.
Troubleshooting
1. If the semling eye indicator light does not glow
steadily after installation, check for:
• Electric power to the opener.
• A short in the white or white/black wires. These can
occur under staples or at screw terminal connections.
• Incorrect wiring between sensors and opener.
• An open wire (wire break).
2. If the sending eye indicator light glows steadily but
the receiving eye indicator light doesn't:
• Check alignment.
• Check for an open wire to the receiving eye.
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