36
DIAGNOSTIC CODE
SYMPTOM
SOLUTION
Up Arrow Flash
(es)
Down Arrow Flash
(es)
4
1-4
Door is moving, stops or reverses. Opener beeps and lights flash.
Manually open and close the door. Check for binding or obstructions, such as a broken spring or door lock,
correct as needed. If the door is binding or sticking, contact a trained door systems technician. If door is not
binding or sticking attempt to reprogram travel (refer to 1).
4
5
Opener runs approximately 6-8" (15-20 cm), stops and reverses.
Communication error to travel module. Check travel module connections, replace travel module if necessary.
4
6
The garage door opener will not close.
Safety reversing sensors are misaligned or were momentarily obstructed. Realign both sensors to ensure both
LEDs are steady and not flickering. Make sure nothing is hanging or mounted on the door that would interrupt
the sensor’s path while closing.
The garage door opener will NOT enter Wi-Fi® learn mode:
•
After the initial installation of the garage door opener, the garage door opener must complete a full cycle
(open and closed) before the Wi-Fi® learn mode can be activated.
•
If there has been a recent power outage, the garage door opener must complete a full cycle before the
Wi-Fi® LEARN MODE can be activated.
See 28 to activate Wi-Fi® learn mode.
Cannot connect garage door opener to home Wi-Fi® network:
•
Ensure the myQ® Serial number was entered correctly and try again. The myQ® characters are between A-
F and 0-9 only.
•
Weak Wi-Fi® signal in the garage. Ensure the Wi-Fi® signal is reaching the garage, see 1 or
visitsupport.chamberlaingroup.com for more information.
My door will not close:
The safety reversing sensor must be connected and aligned correctly before the garage door opener will move
in the down direction.
•
Verify the safety reversing sensors are properly installed, aligned and free of any obstructions.
My neighbor’s remote control opens my garage door:
Erase the memory from your garage door opener and reprogram the remote control(s).
My vehicle's Homelink
®
is not programming to my garage door opener:
Depending on the make, model, and year of your vehicle an external adapter may be required. Visit
www.homelink.com for additional information.
Troubleshooting
