Genie 38647R.S Guide

These instructions are written assuming that you will have ample room around unit 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 and/or instal-
lation poster for proper assembly and/or programming and carefully read and understand all warnings and cautions pertaining to your
unit. Manuals/instructions can be downloaded from our websites. Refer to your unit label for website information.
WARNING
BE SURE ELECTRICAL POWER HAS BEEN DISCONNECTED FROM THE INPUT POWER LINES PRIOR TO REMOVING ANY ELECTRICAL
COMPONENT COVER.
!
WARNING
ANY AND ALL REPAIRS MADE TO THIS UNIT MUST BE PERFORMED WITH THE DOOR DISCONNECTED FROM THE UNIT AND IN THE
CLOSED POSITION.
!
Tools Required: 1/4” nut driver, small common screwdriver.
Approximate Time Required: 30 Minutes.
NOTE:Railnotshown,railremovalisnotnecessaryforthisrepair.
38653502325 10/13
1. Remove power from operator.
2. Press down on tabs to remove lens. FIG-1
3. Remove light bulb.
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-2
5. Using a 1/4” nut driver or common screw driver, remove the 3 opener cover screws and opener cover. FIG-2
Parts Included in this kit: Control board assembly, 2 mounting screws.
Control Board Replacement Instructions
FIG. 1 FIG. 2
Tabs
Cover Screws
Lens

FIG. 3
Encoder
Mounting
Screws
Transformer
Secondary Black Motor Wire
Red Motor Wire
Harness Keeper
Light
Transformer
Primary
AC
Power
WhiteYellowRed
Harness Keeper
{
{
{
{ {
Connector
Detail
Black
White
Black
Black
White
Blue
6. Note the locations and remove lights, transformer primary, AC power, red & black motor wires, transformer
secondary, and encoder harnesses. FIG-3
7. Using a 1/4” nut driver or common screw driver, remove 2 control board mounting screws and remove control
board. FIG-3
8. Install the replacement control board, harnesses, opener cover, BWC & STB wires, light bulb and lens in reverse
order as removed.
9. Reapply power to operator.
NOTE: Limit settings will require reprogramming. Refer to your owners manual for detailed instructions.
IMPORTANT: Test opener functions. The door MUST reverse on contact with a 1-1/2” high object (or a 2 x 4 board laid
flat) at the center of doorway on the floor. After adjusting either the force or limit of travel, retest door opener. Failure to
adjust the opener properly may cause severe injury or death.