39565503416
1. Remove power from operator.
2. Press down on tabs to remove lens.
3. Remove light bulbs.
4. Note locations and remove BWC (Basic Wall Control) and STB (Safe-T-Beam
®
) wires. Use small screwdriver to press in on orange
tabs to remove wires. FIG. 1.
5. If equipped, unplug and remove battery backup (BBU) from back of motor housing. Fig. 2.
CLOSE DOOR PRIOR TO REPAIR.
PARTS REMOVED FOR CLARITY
09/2016
Scan code or visit
http://www.openerserviceassistant.
com/39272S.S & 39272T.S .htm
to view a video of this repair.
24V DC Opto Replacement
For Chain & Belt Operators
WARNING
BE SURE ELECTRICAL POWER HAS BEEN DISCONNECTED FROM THE OPENER PRIOR TO REMOVING THE MOTOR COVER.
!
WARNING
ANY AND ALL REPAIRS MADE TO THIS UNIT MUST BE PERFORMED WITH THE DOOR DISCONNECTED FROM THE OPENER AND IN THE
CLOSED POSITION.
!
These instructions are written assuming that you will have ample room around Opener to perform this repair. Some rare instances
will require removal of the unit from it’s mounting hardware and repair made on a bench or floor. Refer to your Owners Manual or
Installation Poster for proper assembly and carefully read and understand all warnings and cautions pertaining to your unit.
Tools required: Standard slotted and Phillips head screwdrivers, small slotted screwdriver, 5/16” nutdriver.
FIG. 1
FIG. 2
39272S.S
39272T.S
