Circuit Board Assembly - 41181R.S

These instructions are written assuming that you will have ample room around Opener to perform this repair. Some 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 for proper assembly and carefully read and understand all warnings and cautions pertaining to your unit.

Download the PDF Printable instructions here. 

• Close Door. (If unable to lower door using opener, use extreme caution manually closing door. Before pulling emergency release cord, make certain people and objects are clear of door opening.) Pull emergency release cord down until it latches to close door manually.
• Unplug opener power cord from power receptacle or turn off breaker.
• Remove Battery Backup (BBU) from powerhead, if equipped, or bottom tray cover: FIG. 1-2.
• Unplug BBU (if equipped) and Door Lock harness from bottom of powerhead. FIG. 3.
• Remove wall control (If equipped) and Safe-T-Beam® wires from terminal block. FIG. 3
• Use small common screwdriver to press in on orange tabs while gently pulling wires from block. Mark wires to help facilitate replacement.

• Remove 2 screws securing cover assembly to chassis. FIG.4
• Pull bottom of cover outward slightly and lift up to release cover assembly from upper mounting clips.

REMOVE COVER:

• Unplug the following harnesses from main board in the following order (FIG. 5): NOTATE HARNESS DIRECTION AND LOCATION.
• A.P.E. (Travel Limit) harness
• iDCM harness (If equipped)
• Transformer harness
• Motor wires
• Main board can now be accessed for replacement
• Remove 5 mounting screws and remove and replace main control board. FIG. 5.
• Install all circuit board harnesses in reverse order from step 6.

NOTE: Care must be taken to ensure each harness plug is inserted in the correct location and direction. SEVERE DAMAGE CAN OCCUR IF INSTALLED IMPROPERLY.

• Slide cover mounting tabs into position and install bottom screws.
• Install all external wiring removed in step 3.
• . Verify interlock jumper is installed on terminal strip. (SEE FIG. 3)
• . Install battery backup (if equipped) or bottom tray cover.
• Apply power to opener.
• . Reference owners manual to program:
• Limits
• Remote Controls, Wireless Wall Console, Light(s), etc.
• Perform all safety checks per owners manual.
• Force Adjustment
• Contact Reverse Test