Linear
Linear Garage Door Openers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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F1
Operator will not run from wall button or remote; single short beep from head unit, LED display shows F1.
Photo Eye Obstruction or Misalignment
F10
Display shows F10; opener will not respond to wall button or remotes.
Wall Control Lockout or Wall Station Fault
F11
Display shows F11; door stops and will not move; opener may beep continuously.
Emergency Release / Trolley Disengaged Fault
F12
Display shows F12; door moves a few inches then stops; repeated attempts cause same behavior.
Limit Switch / Travel Sensor Fault
F13
Display shows F13; opener runs but door does not move; grinding or free-spinning sound from head unit.
Drive Gear Failure
F14
Display shows F14; opener beeps; battery backup (if equipped) does not function.
Battery Backup Fault
F15
Display shows F15; opener operates but external accessories (loops, key switches) malfunction.
Accessory Input Fault
F2
Door will not close from remote; will only close when wall button is held down; display shows F2.
Photo Eye Circuit Open or Shorted
F3
Door stops and reverses immediately when trying to close; opener beeps and shows F3.
Down Force / Obstruction Sensed
F4
Door will not fully open or stops partway; opener beeps and shows F4.
Up Force / Travel Limit Fault
F5
Opener will not run; display shows F5 immediately on power-up.
Motor Overload or Thermal Trip
F6
Opener runs briefly then stops; display shows F6; door may not move.
Drive System Jam or Travel Feedback Fault
F7
Opener beeps and shows F7; remotes and keypad do not operate the door, but wall button may still work.
Radio Receiver Fault
F8
Opener is completely dead or only the display lights; F8 error appears intermittently or on power-up.
Low Voltage / Power Supply Fault
F9
Door reverses randomly during travel; display shows F9; no obvious obstruction.
Safety Reversal / Force Calibration Error
Symptom
Burning smell or visible smoke from the Linear opener during or after operation.
Electrical Overheating or Component Failure
Symptom
Door hits the floor and then immediately reverses back open.
Down Limit Set Too Far / Overtravel
Symptom
Door is very heavy to lift manually and opener strains or stalls.
Improper Door Balance / Spring Failure
Symptom
Door moves a few inches and then stops, without reversing direction.
Mechanical Binding or Excessive Load
Symptom
Door opens by itself or closes unexpectedly without any command.
Unintended Activation / Interference
Symptom
Door opens normally but will not close at all from any control.
Close Command Inhibited
Symptom
Door starts to close then immediately reverses to open, with no error code displayed.
Safety Sensor Interruption or Misalignment (No Code)
Symptom
Door will not close from remote or keypad but will close when holding the wall button down.
Safety Circuit Override Condition
Symptom
Door will not open fully; stops 6–12 inches short of the header.
Insufficient Up Travel Limit
Symptom
Garage door opener does not respond at all; no lights, no sounds, no display.
No Power to Operator
Symptom
High-pitched squealing or grinding noise during door travel.
Dry or Worn Rollers and Bearings
Symptom
Loud banging or clunking noise when the door starts or stops moving.
Loose or Worn Door Hardware
Symptom
Opener chain or belt is slapping the rail or sagging excessively.
Improper Chain/Belt Tension
Symptom
Opener hums but the door does not move; motor may stop after a few seconds.
Motor Stalled or Capacitor Failure
Symptom
Opener light does not turn on when door operates, but door moves normally.
Light Circuit or Lamp Fault
Symptom
Opener light stays on continuously and does not turn off after the usual timeout.
Stuck Light Relay or Control Logic Fault
Symptom
Opener operates normally but makes a rattling noise inside the housing.
Loose Internal Components
Symptom
Opener runs but door moves very slowly or jerks during travel.
Drive Train Wear or Door Friction
Symptom
Remote controls have very short range or only work when very close to the Linear opener.
Poor RF Reception
Symptom
Water or moisture visible inside the opener housing; intermittent operation during damp weather.
Moisture Ingress / Corrosion
Symptom
Wireless keypad will not operate the door, but handheld remotes work normally.
Keypad Communication or Programming Fault
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| F1 |
Operator will not run from wall button or remote; single short beep from head unit, LED display shows F1.
|
Photo Eye Obstruction or Misalignment | View Details |
| F10 |
Display shows F10; opener will not respond to wall button or remotes.
|
Wall Control Lockout or Wall Station Fault | View Details |
| F11 |
Display shows F11; door stops and will not move; opener may beep continuously.
|
Emergency Release / Trolley Disengaged Fault | View Details |
| F12 |
Display shows F12; door moves a few inches then stops; repeated attempts cause same behavior.
|
Limit Switch / Travel Sensor Fault | View Details |
| F13 |
Display shows F13; opener runs but door does not move; grinding or free-spinning sound from head unit.
|
Drive Gear Failure | View Details |
| F14 |
Display shows F14; opener beeps; battery backup (if equipped) does not function.
|
Battery Backup Fault | View Details |
| F15 |
Display shows F15; opener operates but external accessories (loops, key switches) malfunction.
|
Accessory Input Fault | View Details |
| F2 |
Door will not close from remote; will only close when wall button is held down; display shows F2.
|
Photo Eye Circuit Open or Shorted | View Details |
| F3 |
Door stops and reverses immediately when trying to close; opener beeps and shows F3.
|
Down Force / Obstruction Sensed | View Details |
| F4 |
Door will not fully open or stops partway; opener beeps and shows F4.
|
Up Force / Travel Limit Fault | View Details |
| F5 |
Opener will not run; display shows F5 immediately on power-up.
|
Motor Overload or Thermal Trip | View Details |
| F6 |
Opener runs briefly then stops; display shows F6; door may not move.
|
Drive System Jam or Travel Feedback Fault | View Details |
| F7 |
Opener beeps and shows F7; remotes and keypad do not operate the door, but wall button may still work.
|
Radio Receiver Fault | View Details |
| F8 |
Opener is completely dead or only the display lights; F8 error appears intermittently or on power-up.
|
Low Voltage / Power Supply Fault | View Details |
| F9 |
Door reverses randomly during travel; display shows F9; no obvious obstruction.
|
Safety Reversal / Force Calibration Error | View Details |
| – |
Burning smell or visible smoke from the Linear opener during or after operation.
|
Electrical Overheating or Component Failure | View Details |
| – |
Door hits the floor and then immediately reverses back open.
|
Down Limit Set Too Far / Overtravel | View Details |
| – |
Door is very heavy to lift manually and opener strains or stalls.
|
Improper Door Balance / Spring Failure | View Details |
| – |
Door moves a few inches and then stops, without reversing direction.
|
Mechanical Binding or Excessive Load | View Details |
| – |
Door opens by itself or closes unexpectedly without any command.
|
Unintended Activation / Interference | View Details |
| – |
Door opens normally but will not close at all from any control.
|
Close Command Inhibited | View Details |
| – |
Door starts to close then immediately reverses to open, with no error code displayed.
|
Safety Sensor Interruption or Misalignment (No Code) | View Details |
| – |
Door will not close from remote or keypad but will close when holding the wall button down.
|
Safety Circuit Override Condition | View Details |
| – |
Door will not open fully; stops 6–12 inches short of the header.
|
Insufficient Up Travel Limit | View Details |
| – |
Garage door opener does not respond at all; no lights, no sounds, no display.
|
No Power to Operator | View Details |
| – |
High-pitched squealing or grinding noise during door travel.
|
Dry or Worn Rollers and Bearings | View Details |
| – |
Loud banging or clunking noise when the door starts or stops moving.
|
Loose or Worn Door Hardware | View Details |
| – |
Opener chain or belt is slapping the rail or sagging excessively.
|
Improper Chain/Belt Tension | View Details |
| – |
Opener hums but the door does not move; motor may stop after a few seconds.
|
Motor Stalled or Capacitor Failure | View Details |
| – |
Opener light does not turn on when door operates, but door moves normally.
|
Light Circuit or Lamp Fault | View Details |
| – |
Opener light stays on continuously and does not turn off after the usual timeout.
|
Stuck Light Relay or Control Logic Fault | View Details |
| – |
Opener operates normally but makes a rattling noise inside the housing.
|
Loose Internal Components | View Details |
| – |
Opener runs but door moves very slowly or jerks during travel.
|
Drive Train Wear or Door Friction | View Details |
| – |
Remote controls have very short range or only work when very close to the Linear opener.
|
Poor RF Reception | View Details |
| – |
Water or moisture visible inside the opener housing; intermittent operation during damp weather.
|
Moisture Ingress / Corrosion | View Details |
| – |
Wireless keypad will not operate the door, but handheld remotes work normally.
|
Keypad Communication or Programming Fault | View Details |
No matching codes found
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