© 2007, The Chamberlain Group, Inc.
114A3254C All Rights Reserved
Receiver (Bottom)
Wall
Button
To wall outlet
Model 85
Transformer
Trans Primary
Receiver (Bottom)
Wall
Button
Opener
To wall
outlet
Model 95
Transformer
Trans Primary
STAR450 COMPATIBLE REMOTE CONTROLS STAR
™
450 OPTIONAL ACCESSORIES
Problem Probable Cause(s) Solution(s)
No display 1. Faulty/intermittent power connections
to unit Or
2. No power to unit
1. Memory may be full Or
2. Transmitter may not be a recognized
Chamberlain transmitter Or
3. Transmitter battery is dead
1. Transmitter not learned into system Or
2. Transmitter is blocked Or
3. Transmitter battery is dead
1. Add transmitter to memory
2. Replace transmitter battery
1. Check power connections
to unit
2. Supply power to unit
Press 4 and 0 keys at
the same time
Replace backup memory module
No beep when
transmitting
Unit does not function,
[E 1] displayed
Duplication function
does not work,
[E 2] displayed
Keypad does not
respond,
[E 3] displayed
Main memory module missing or
damaged
Audible diagnostics may have been
turned OFF (right-most decimal point
will be lit on the display)
Transmitter does
not activate operator
Transmitter will not
learn into memory
1. Delete unused transmitters from memory
2. Verify transmitter is listed in compatible
transmitters section Or
3. Replace transmitter battery
Backup memory module missing or
damaged, if included
Keypad has a stuck key
Cycle power.
If unit exhibits this condition again after 2
minutes, contact Technical Service.
Replace main memory module
TROUBLESHOOTING GUIDE
ELECTRICAL CONNECTIONS FOR STAR450
Security+
®
Remote Controls Security+
®
Keypads
373P 377LM
371LM 379LM
372LM
370LM
373LM
374LM
Passport™ Remote Control Digital Remote Controls
CPT43 361LM
CPT13 362LM
CPT23 363LM
CPT33 333LM
Passport™ Mini Remote Control
CPTK13
CPTK13PH
CPTK33
CPTK33PH
For highest level of security, we recommend the Security+
®
and Passport™
transmitter families.
CGI Part Number Description
71-65WTBOX Watertight Box Field Install Kit
86LM Antenna Extension Kit
85LM 24VAC Transformer with Barrel Connector
95LM 24VAC Transformer with Screw Terminals
SERVICE INFORMATION TOLL FREE NUMBER
1-800-528-2806
www.liftmaster.com
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