Craftsman 20057933 model garage door opener error codes
These error code explanations can help you diagnose a problem with your Craftsman 20057933 model garage door opener. For repair how-to help, visit the PartsDirect repair help section, which includes DIY help for garage door openers, refrigerators, other major appliances, lawn and garden equipment, water heaters/softeners and more. Search for your model number to find a complete list of replacements parts available for your garage door opener.
This Craftsman garage door opener flashes lights to indicate a component failure.
Safety sensors are misaligned or sensor wires are broken
Realign the safety reversing sensors so that the red LED on the receiving sensor glows steadily. Reconnect any loose wires between the safety reversing sensors and the logic board. Replace the safety reversing sensor wires if damaged.
Motor overheated
The motor can overheat if the door is opened and closed several times in a row. Unplug the garage door opener to reset the logic board. Allow the motor to cool for about 15 minutes before restoring power and using the garage door opener. Pull the emergency door release and check the up-and-down travel of the garage door for binding. Repair the garage door if it doesn’t travel smoothly. If it overheats after a single use and the garage door travel is smooth, replace the motor.
Safety sensors are misaligned or obstructed
Remove the obstruction between the safety sensors or realign the safety reversing sensors so that the red LED on the receiving sensor glows steadily.
Most common symptoms to help you fix your garage door openers
Choose a symptom to see related garage door opener repairs.
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: safety sensor beams blocked, safety sensors not aligned, downforce setting needs adjustment, damaged garage…
Things to do: check garage door travel, tighten brackets and fasteners, test safety sensors, check travel limits and for…
Main causes: radio interference, weak remote batteries, sunlight interference with safety sensor beams, safety sensors n…
Main causes: faulty logic control board, bad RPM sensor, broken gears in the drive system, bad drive motor…
Main causes: neighbor's remote programmed at the same time as yours, faulty wall control wiring, bad wall control unit…
Main causes: loose fasteners, broken brackets, need preventive maintenance, worn drive gears, loose or worn belt, loose …
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 gear and sprocket assembly
Learn how to replace the gear and sprocket assembly on your garage door opener if the drive motor runs but the door won'…
How to replace a garage door opener logic board
The logic board is the brains of the garage door opener. If the remote doesn't work or the door doesn't open and close p…
How to replace a garage door opener drive chain and cable assembly
If your garage door won’t move, the chain and cable assembly on your garage door opener could be broken. Follow these st…
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.
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