Chamberlain GS400D Owner's Manual page 35

DUAL GATE (LEFT-SIDE PRIMARY OPERATOR)
NOTES:
• If one gate is overlapping the other, the gate that is overlapping must be connected to GATE 1 so it will start moving
before the other gate.
• Gate 2 may need to be closed first if there is overlap or a gate lock is being used.
• The "Learn Limits" mode can be exited at any time by pressing the RESET button. The mode will time-out
automatically after 60 seconds of inactivity.
With the gate in the closed position, press the LEARN LIMITS button. The SET OPEN LIMIT LED will blink.
SET
OPEN N
LIMIT T
Press the GATE 1 right button to open the left side operator. Press the GATE 2 button right button to move the right side
operator into the OPEN position. Press the LEARN LIMITS button. Control board will make a 'beep' sound.
When the SET CLOSE LIMITS LED blinks, press the GATE 1 left button to close the left operator. Press the
GATE 2 button left button to close the right operator. Press the LEARN LIMITS button. The open and close limits have
been programmed. Control board beeps and the SET OPEN and CLOSE LEDs stop blinking.
DIAGNOSTIC
GATE 1
SET
CLOSE
SET
LE
CLOSE
LIMIT
LIMIT
GATE 2
FORCE
After learning limits, use the SBC to open and close the gate to verify the limits and baseline the force needed to move
the gate.
NOTE: If the SET OPEN LIMIT LED is still blinking, limits were not learned successfully. Repeat the procedure making
sure the gate is fully opened and closed for each respective limit. If the problem persists, refer to the Troubleshooting
section.
DIAGNOSTIC
GATE 1
SET
CLOSE
SET
LE
CLOSE
LIMIT
LIMIT
GATE 2
FORCE
35
DIAGNOSTIC
GATE 1
SET SET
LEARN
OPEN CLOSE
LIMITS
LIMIT LIMIT
GATE 2
FORCE
Programming