Chamberlain LMWEKITU Manual page 3

DUAL GATE SETUP
For dual gate applications, one receiver (with corresponding transmitter) is REQUIRED for each
gate operator.
Primary Operator
BATTERY STATUS
When the edge is activated, the red status LEDs on the transmitter(s) and receiver flash to indicate
the battery status.
NOTE: The receiver LED corresponds to the lowest battery level of all transmitters.
1 Flash Battery is fine.
2 Flashes Battery is low; the operator will beep twice.
3 Flashes Battery is critically low; the operator will not function until the battery is
replaced. The operator will either open automatically (fail-safe) or latch
at close (fail-secure) based on the operator setting (see the gate
operator manual for more information).
Status LED
Secondary Operator
Transmitter
Status LED
REMOVE A TRANSMITTER
1. Disconnect the edge sensor wires from the TRANSMITTER.
2. Remove the batteries from the TRANSMITTER.
3. Press and hold the RECEIVER learn button until the red status LED begins to flash (about 3
seconds) then release. The receiver will return to normal operation after 60 seconds. Any
transmitters that have been removed will automatically be erased from memory.
1-2
Transmitter
ERASE ALL TRANSMITTERS FROM MEMORY
Press and hold the RECEIVER learn button until the red status LED begins to flash. Press and hold
the receiver learn button until after the learn button stops flashing. The gate operator will beep for 5
seconds to confirm all transmitters are erased.
TROUBLESHOOTING
The diagnostic display on the gate operator control board shows a code to indicate a problem.
View Diagnostic Codes
1. Press and hold the STOP button.
2. Press and hold the CLOSE button.
3. Press and hold the OPEN button until "Er" shows on the display.
The operator will show the code sequence number followed by the code number. The operator will
save the 20 most recent codes. Use the OPEN and CLOSE buttons to scroll through the saved
codes.
Diagnostic mode will time out after 2 minutes of inactivity or press and release the STOP button to
exit diagnostic mode.
Diagnostic Codes for LMWEKITU
Wireless edge battery low
46
Wireless edge triggered
67
more than 3 minutes
Wireless Edge triggered
68
Wireless Edge loss of
69
monitoring
Non-monitored device
detected on the wireless
84
safety system
3
3
Receiver
DIAGNOSTICS
Replace batteries in wireless edge.
Check wired input for wiring issue or obstruction.
Normal response when an edge makes contact with an
object. See Edge Sensor Troubleshooting page 4.
See troubleshooting steps below, paying attention to
intermittent wire connections.
Ensure that the installed edge is a LiftMaster product.
Install a LiftMaster monitored edge sensor.
Learn Button
Control Board