Craftsman Garage Door Openers Error Codes

1 FLASH

Garage door will not close from wall button or remote; opener lights flash once and the door reverses to open position.

Safety Sensor Obstruction or Misalignment

10 FLASHES

Opener lights flash ten times and door will not move; may occur after installing LED bulbs or accessories.

Accessory or Sensor Power Overload

2 FLASHES

Garage door opener will not close from remote; opener lights flash twice and door reverses or will not move.

Safety Sensor Wiring Short or Open Circuit

3 FLASHES

Garage door starts to close, then reverses and opener lights flash three times; door may bind or stop partway.

Door Travel or Force Obstruction Detected

4 FLASHES

Opener will not close door; lights flash four times; door may move slightly then stop.

Limit Switch or Travel Module Fault

5 FLASHES

Opener will not run; lights flash five times when attempting to operate; motor does not hum or move.

Motor Overload or Motor Circuit Failure

6 FLASHES

Opener will not run; lights flash six times; sometimes accompanied by a clicking sound from the head unit.

Motor Start Capacitor Failure

7 FLASHES

Opener attempts to run but stops quickly; lights flash seven times; door may move only an inch or not at all.

RPM Sensor / Tachometer Failure

8 FLASHES

Opener will not respond to wall control or remotes; lights flash eight times; sometimes wall control LED is off or flickering.

Wall Control or Wall Control Wiring Fault

9 FLASHES

Opener will not run; lights flash nine times; remotes and wall control may appear to work but motor does not move.

Logic Board / Control Board Failure

KEYPAD ERROR (NO LIGHT / NO RESPONSE)

Craftsman wireless keypad does not light up or operate the door when code is entered.

Wireless Keypad Power or Programming Failure

LED CODE: RAPID BLINKING

Craftsman opener learn LED blinks rapidly and will not accept new remote programming.

Memory Full or Learn Mode Error

LED CODE: SOLID RED

Craftsman opener logic board diagnostic LED stays solid red and unit is unresponsive to commands.

Firmware Lockup or Logic Board Freeze

NO LED / NO RESPONSE

Craftsman garage door opener shows no lights, no sounds, and does not respond to wall control or remotes.

No Power to Opener or Internal Power Supply Failure

REMOTE LED BLINKS, OPENER DOES NOTHING

Craftsman remote LED lights when pressed, but the opener does not move or click; no error flashes on opener.

Unprogrammed or Incompatible Remote

Symptom

Garage door closes and then immediately opens again without any obstruction present.

Over-travel or Floor Contact Reversal

Symptom

Garage door opener belt appears frayed, cracked, or is slipping on the pulley.

Worn or Damaged Drive Belt

Symptom

Garage door opener chain is sagging excessively or jumping on the sprocket.

Improper Chain Tension or Worn Sprocket

Symptom

Garage door opener clicks but does not run; a relay sound is heard but the motor does not start.

Motor Start Circuit Failure

Symptom

Garage door opener emits a burning smell or visible smoke during or after operation.

Overheated Motor or Electrical Short

Symptom

Garage door opener hums but does not move the door; humming stops after a few seconds.

Stalled Motor or Jammed Drive System

Symptom

Garage door opener lights do not turn on when the door operates, or they stay on continuously.

Light Control Circuit or Lamp Socket Fault

Symptom

Garage door opener lights turn on but the motor does not run when pressing the wall button or remote.

Stuck Lock Feature or Faulty Wall Control

Symptom

Garage door opener makes loud banging, grinding, or clunking noises during operation.

Worn Drive Components or Loose Hardware

Symptom

Garage door opener motor runs but the door does not move; you may hear the chain or belt moving while the door stays closed.

Drive Gear and Sprocket Assembly Failure

Symptom

Garage door opener operates but the door stops short of fully closing, leaving a gap at the bottom.

Insufficient Down Travel or Door Interference

Symptom

Garage door opener operates from wall control but not from any remote controls.

Remote Receiver or Antenna Issue

Symptom

Garage door opener operates normally but there is a noticeable electrical buzzing or humming from the head unit.

Noisy Transformer or Relay

Symptom

Garage door opener rail flexes noticeably and the door struggles to move, especially at the start of travel.

Bent or Weak Rail Assembly

Symptom

Garage door opener runs but moves the door very slowly or struggles, especially in cold weather.

Increased Door Friction or Weak Motor

Symptom

Garage door opener runs for a few seconds and then stops, with the door only partially open or closed; no error flashes.

Thermal Overload or Overcurrent Protection Trip

Symptom

Garage door opener runs, but the door only moves a few inches and then stops or reverses without flashing lights.

Door Obstruction or Excessive Friction

Symptom

Garage door opener trolley does not reconnect to the door after pulling the emergency release.

Disengaged or Damaged Trolley Latch

Symptom

Garage door opener vibrates excessively, causing the opener head and rail to shake.

Improper Mounting or Unbalanced Door

Symptom

Garage door opens by itself or operates unexpectedly without pressing any button.

Radio Frequency Interference or Stuck Control

Symptom

Garage door opens normally but will not close from remote; it will close only when holding the wall button continuously.

Safety Sensor Bypass Mode / Sensor Fault

Symptom

Garage door reverses immediately when trying to close, with no flashing error code; it may close fully only when holding the wall button down.

Down Travel or Force Misadjustment

Symptom

Garage door will not open fully; it stops partway and may reverse or the opener stops running.

Up Travel Limit Misadjustment or Door Binding