Chamberlain WeatherDrive LM555EVGBSA, Installation And Operating Instructions Manual

Page: 20 / 40

2
0
DIAGNOSTIC CHART
Your garage door opener is programmed with self-diagnostic capabilities. The indicator LEDʼs 1 & 3 on the control panel will flash a number of
times to indicate a fault code exists.
DIAGNOSTIC CODE
LED 1 LED 3
1 1
1 2
1 3
1 4
1 5
2 1
2 2
2 4
4 1
4 2
SYMPTOM
The garage door opener will not
close and the courtesy light flashes.
The garage door opener will not
close and the courtesy light flashes.
The door control will not function.
The garage door opener will not
close and the courtesy light flashes.
There is no door movement or motor
accelerates before stopping
suddenly.
Opener fails to operate.
Opener fails to operate.
Opener fails to operate using the
remote controls
Door is moving down, stops and
reverses.
Door is moving up, stops and
reverses.
POSSIBLE RESOLUTION
Safety sensors are not installed correctly or wires may be cut. Inspect sensor
wires for a disconnected or cut wire.
There is a short or reversed wire for the safety sensors. Inspect safety sensor
wire at all staple points and connection points and replace wire or correct as
needed.
The wires for the door control are shorted or the door control is faulty. Inspect
safety sensor wire at all staple points and connection points and replace wire
or correct as needed.
Safety 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 sensors path while
closing.
No RPM pulses have been detected. Check the door manually for balance,
binding or obstructions. Internally the possible cause may be the motor, logic
board or RPM sensor. Try resetting door travel limits. Contact service centre.
Possible PCB memory failure. Reboot opener by turning the mains power OFF
and then ON after 15 seconds. Reprogram the door travel limits and force
settings. Contact service centre.
Possible PCB Voltage failure. Reboot opener by turning the mains power OFF
and then ON after 15 seconds. Reprogram the door travel limits and force
settings. Contact service centre.
Possible receiver failure. Reboot opener by turning the mains power OFF and
then ON after 15 seconds. Recode the transmitters. Contact service centre.
Manually open and close the door. Check for binding or obstructions, such as
a broken spring or door lock. If the door is binding or sticking contact a trained
door systems technician. If door is not binding or sticking, reset the limits (refer
to “Program the Travel Limits and Force” section).
Manually open and close the door. Check for binding or obstructions, such as
a broken spring or door lock. If the door is binding or sticking contact a trained
door systems technician. If door is not binding or sticking, reset the limits (refer
to “Program the Travel Limits and Force” section).
2 5