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Model # PMX75 Official Genie ac chain & belt drive garage door opener
Here are the diagrams and repair parts for Official Genie PMX75 ac chain & belt drive garage door opener, as well as links to manuals and error code tables, if available.
Error CodesBy Schematic
SELECT DIAGRAM
Browse Parts for
PMX75 AC Chain & Belt Drive Garage Door Opener
#191
Rail - all other models diagram
Garage door opener chain idler pulley
Part #20456R
The manufacturer no longer makes this part, and there's no substitute part
Garage door opener bolt retainer
Part #26004A
The manufacturer no longer makes this part, and there's no substitute part
Garage door opener motor bushing
Part #33221A
The manufacturer no longer makes this part, and there's no substitute part
Strnrelief
Part #9541C
The manufacturer no longer makes this part, and there's no substitute part
Garage door opener fastener pin
Part #18586A04
The manufacturer no longer makes this part, and there's no substitute part
Screw,#8-1
Part #27255B04
The manufacturer no longer makes this part, and there's no substitute part
Garage door opener washer
Part #27087A
The manufacturer no longer makes this part, and there's no substitute part
#21
Head - all other models diagram
Switch
Part #27221A
The manufacturer no longer makes this part, and there's no substitute part
Nut,#10-32
Part #24121E05
The manufacturer no longer makes this part, and there's no substitute part
Garage door opener screw
Part #605879.0001
The manufacturer no longer makes this part, and there's no substitute part
Most common symptoms to help you fix your garage door openers
Choose a symptom to see related garage door opener repairs.
Main causes: neighbor's remote programmed at the same time as yours, faulty wall control wiring, bad wall control unit…
Things to do: check garage door travel, tighten brackets and fasteners, test safety sensors, check travel limits and for…
Main causes: safety sensor beams blocked, safety sensors not aligned, downforce setting needs adjustment, damaged garage…
Main causes: garage door opener misaligned, travel limits need adjustment, bad travel limit switches, faulty logic contr…
Main causes: garage door locked, damaged garage door tracks, up-force setting needs adjustment, RPM sensor failure, bad …
Main causes: loose fasteners, broken brackets, need preventive maintenance, worn drive gears, loose or worn belt, loose …
Main causes: faulty logic control board, bad RPM sensor, broken gears in the drive system, bad drive motor…
Main causes: radio interference, weak remote batteries, sunlight interference with safety sensor beams, safety sensors n…
Most common repair guides to help fix your garage door openers
These step-by-step repair guides will help you safely fix what’s broken on your garage door opener.
How to replace a chain-drive garage door opener motor
Get your garage door moving again by replacing a defective motor in your garage door opener.…
Repair difficulty
Time required
60 minutes or less
How to replace a chain-drive garage door opener RPM sensor
Learn how to replace the RPM sensor if the door only moves 6 to 8 inches at a time and the LED light flashes 5 times. …
Repair difficulty
Time required
60 minutes or less
How to replace a chain-drive garage door opener drive and worm gears
If your garage door won’t move, the drive and worm gears could be broken. This guide will help you replace the gears.…
Repair difficulty
Time required
60 minutes or less
Effective articles & videos to help repair your garage door openers
Use the advice and tips in these articles and videos to get the most out of your garage door opener.
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Learn how to open a garage door manually if power to your garage door opener fails.…