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GARAGE DOOR MONITOR OPERATION
When the receiver is powered up, both red and green LED’s
will blink once. The receiver will display the current status of
the programmed door transmitter. If no door transmitter(s) is
programmed to the receiver, the green and red LED will flash
simultaneously. See Learning section.
The transmitter sends a closed signal when the garage door is
closed (vertical) and an open signal as the transmitter changes
to open (horizontal) position.
Up to 4 door mounted transmitters will work in conjunction with
one receiver.
The red LED will blink once every half-second if one or more of
the programmed transmitters are not in the closed position. The
green LED comes on steady only when all the programmed
transmitters are in the closed position.
NOTE: The system will sometimes take a few seconds to send
a signal. The transmitter updates the receiver by transmitting
an open or closed signal every few minutes.
LEARNING MORE THAN ONE
TRANSMITTER(S)
1. Door must be closed and the green
LED on steadily.
2. Press and hold the learn button for 2
seconds, the receiver will enter the learn
mode. The green LED will blink on and
off in 1/2 second increments.
3. The additional transmitter(s) must be moved from a vertical
position to a horizontal position or vice versa.
4. Both green and red LED’s will turn on for 1 second to
indicate a successful learn. Upon success, the receiver
immediately exits the learn mode and returns to normal
operation.
5. If no signal is received within 30 seconds, the receiver will
exit the learn mode and return to normal operation.
ERASING OR CLEARING THE MEMORY
1. Unplug the small plug from the AC adapter on the
indoor receiver.
2. Make sure the AC adapter is plugged into a wall outlet.
3. To erase the memory of all programmed transmitters, press
and hold the learn button while plugging the small plug on
the AC adapter into the indoor receiver.
4. Both red and green LED’s will blink simultaneously. This also
indicates that no transmitter(s) are in memory.
5. Proceed to Step 2 of Learning More Than One Transmitter to
program the transmitter to the receiver.
TROUBLESHOOTING
The transmitter battery must be replaced every year to assure
consistent operation. Flashing of the red and green LED’s in a
special sequence normally indicates intermittent operation or a
dead battery.
Loss of signal: The Transmitter sends a signal periodically to
synchronize to the receiver. Should the receiver not receive the
signal in approximately 20 minutes, the red and green LED’s
will blink as follows. The green LED will blink once, then the red
LED will blink one to four times depending upon the transmitter
number. This indicates the receiver has not received the signal
from this transmitter for over 20 minutes and therefore
requires attention.
If replacing the battery does not rectify the issue, move the
receiver into the garage for additional troubleshooting. If the
monitor works flawlessly in close proximity, the transmitter(s)
signal is being either blocked or interfered with in the previous
location and may require placement in a room closer to the
garage door(s).
Garage Door Monitor system just installed:
• The receiver has an additional door transmitter or test code
entered into memory during production.
• The receiver’s memory must be erased or cleared and the
transmitter re-trained. See instructions on erasing or clearing
the memory.
• The receiver is located too far away from the transmitter.
Relocate the receiver closer to the transmitter.
Garage Door Monitor suddenly malfunctions after
working properly
• The transmitters battery power is low. Replace the battery.
OPTIONAL ACCESSORIES
You can purchase additional transmitters if you have more than
one garage door. The receiver will learn up to 4 transmitters
and the red light will blink if any one of the garage doors is
open.
ITEM
PART #
Transmitter 916LM
Indoor Receiver 2C507-2
12 Volt AC Adapter 2C508-2
Specifications:
Transmitter
Battery: Lithium Type 2032. 1 year life.
Temperature: -18
0
F to 140
0
F (-25
0
C to 60
0
C).
Codes: 254 randomly set codes.
Receiver
Power Supply: 12 volt DC, 50 mA.
Temperature: 14
0
F to 122
0
F (-10
0
C to 50
0
C).
Codes: Learns codes of up to 4 transmitters
FOR SERVICE DIAL OUR TOLL FREE NUMBER:
(U.S.A.): 1-800-528-2817
© 2002, Chamberlain Group Inc.
114A2627C All Rights Reserved
Press
and Hold
the Learn
Button
NOTICE: To comply with FCC and or Industry Canada (IC) rules, adjustment or modifications of
this receiver and/or transmitter are prohibited, except for changing the code setting or replacing
the battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.
Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired operation.