Guardian Garage Door Openers Error Codes

1

Opener will not run, wall button and remotes do nothing, single flash or code “1” on Guardian logic board LED.

Photo Eye Obstruction or Misalignment Lockout

10

Guardian opener LED shows code “10” or continuous rapid flashing, opener beeps and refuses to move the door.

Excessive Cycle or Thermal Overload Lockout

11

Guardian opener LED shows code “11”, door reverses immediately upon touching the floor.

Over-Sensitive Down Force or Mis-leveled Floor Detection

12

Guardian opener LED shows code “12”, door stops mid-travel and will not move until power is cycled.

Microcontroller or Firmware Lockup

13

Guardian opener LED shows code “13”, battery backup (if equipped) does not function, beeping from unit.

Battery Backup Fault

14

Guardian opener LED shows code “14”, keyless entry and external accessories fail while remotes and wall button work.

Accessory Power or Input Fault

15

Guardian opener LED shows code “15”, light will not turn on/off correctly or flickers, door operation normal.

Light Output or Lamp Control Fault

2

Door will not close from remote, opener light flashes twice or logic board LED shows code “2”, door will close only when wall button is held down.

Safety Reversal System Activation (Down Travel Obstruction)

3

Door will not open fully, stops partway and reverses, Guardian opener LED flashes three times or shows code “3”.

Up Travel or Force Limit Reached (Opening Obstruction)

4

Guardian opener attempts to run but stops quickly, LED shows code “4” or four flashes, motor hums or jerks.

Motor Overload or Stalled Motor Protection

5

Guardian opener will not respond to remotes, LED shows code “5” or five flashes, wall button still operates the door.

Radio Receiver or Antenna Fault

6

Opener runs but door does not move, Guardian LED shows code “6” or six flashes, trolley stays in place.

Drive Disengaged or Travel Module Fault

7

Guardian opener beeps or flashes seven times and will not run, or stops mid-travel and shows code “7”.

Logic Board Voltage or Power Supply Error

8

Guardian opener LED shows code “8”, door reverses randomly or stops at inconsistent positions.

Travel Calibration or Encoder Fault

9

Guardian opener LED shows code “9”, wall console unresponsive or behaves erratically, remotes may still work.

Wall Console or Control Circuit Fault

Symptom

Garage door opener hums but door does not move, Guardian unit light comes on but no lifting action.

Stripped Drive Gear or Broken Belt/Chain Connection

Symptom

Garage door opens by itself randomly without anyone pressing a button.

Unintended Activation or Interference

Symptom

Garage door reverses before fully closing, no error code shown, safety sensors appear aligned.

Door Binding or Track Misalignment

Symptom

Garage door will not open at all, even manually, Guardian opener strains or stops.

Broken Torsion or Extension Spring

Symptom

Guardian opener beeps but does not move door when command is given (battery backup model, AC power lost).

Battery Backup Low or Disabled

Symptom

Guardian opener chain or belt sags noticeably and slaps the rail during operation.

Improper Chain/Belt Tension

Symptom

Guardian opener does not respond after a power outage, while outlet has power.

Logic Board Damage from Power Surge

Symptom

Guardian opener is very noisy during operation, with grinding or rattling sounds.

Worn Drive Components or Poor Lubrication

Symptom

Guardian opener light does not turn on when door operates, but bulb is good.

Failed Light Control or Door Sensor Input

Symptom

Guardian opener light flashes and door will not close from remote, but will close if wall button is held down.

Safety Sensor Circuit Bypass Mode

Symptom

Guardian opener light stays on constantly and will not turn off.

Stuck Light Relay or Control Circuit

Symptom

Guardian opener motor runs but door closes very hard, slamming into the floor.

Excessive Down Travel or Force

Symptom

Guardian opener rail flexes excessively or moves at the header when door starts moving.

Loose Mounting or Inadequate Support

Symptom

Guardian opener rail or motor housing vibrates excessively and transmits noise into the house.

Resonance from Mounting or Door Imbalance

Symptom

Guardian opener remote range is very short, must be very close to door to work.

Weak RF Signal or Antenna Issue

Symptom

Guardian opener remotes and keypad do not work, but wall button operates door normally.

Lost Remote Programming or RF Receiver Failure

Symptom

Guardian opener runs, but door only opens a few inches then stops and reverses.

Door Heavier Than Opener Force Setting Allows

Symptom

Guardian opener stops and reverses when door is about halfway closed, no visible obstruction.

Mid-Travel Obstruction or Door Section Damage

Symptom

Guardian opener stops just short of fully open or fully closed position, leaving a gap.

Minor Misadjustment of Travel Limits

Symptom

Guardian opener trolley will not re-engage after pulling the emergency release cord.

Stuck or Broken Trolley Latch

Symptom

Guardian opener wall button does nothing, but remotes still operate the door.

Open Wall Control Circuit

Symptom

Guardian opener will not close door from keypad, but remotes and wall button work.

Keypad Programming or Hardware Fault