Troubleshooting Guide - LiftMaster STAR 450-390 Guide Rapide

TROUBLESHOOTING GUIDE

Problem
No display
No beep when
transmitting
Remote control does
not activate operator
Remote control will not
learn into memory
Receiver does not function,
[E 1] displayed
Duplication function
does not work,
[E 2] displayed
Keypad does not respond,
[E 3] displayed
Compatible Remote Controls
Security+ Remote Controls
®
970LM
971LM
972LM
973LM
974LM
Passport™ Remote Control
CPT1
CPT2
CPT3
CPT4
Passport™ Mini Remote Control
CPTK1
CPTK1PH
CPTK3
CPTK3PH
For highest level of security, we recommend the Security+
control families.
Optional Accessories
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
114A3564C
Probable Cause(s)
1. Faulty/intermittent power connections to receiver Or
2. No power to receiver
Audible diagnostics may have been turned OFF (right-
most decimal point will be lit on the display)
1. Transmitter not learned into system Or
2. Transmitter is blocked Or
3. Transmitter battery is dead
1. Memory may be full Or
2. Remote control may not be a recognized Chamberlain
remote control Or
3. Remote control battery is dead
Main memory module missing or damaged
Backup memory module missing or damaged,
if included
Keypad has a stuck key
Security+ Keypads
®
976LM
Digital Remote Controls
61LM
62LM
63LM
33LM
®
and Passport™ remote
© 2008, The Chamberlain Group, Inc.
1. Delete unused remote controls from memory
2. Verify remote control is listed in compatible
3. Replace remote control battery
Replace main memory module
Replace backup memory module
Security+ Remote Controls
®
373P
371LM
372LM
370LM
373LM
374LM
Passport™ Remote Control
CPT43
CPT13
CPT23
CPT33
Passport™ Mini Remote Control
CPTK13
CPTK13PH
CPTK33
CPTK33PH
For highest level of security, we recommend the Security+
remote control families.
SERVICE INFORMATION TOLL FREE NUMBER
NOTICE: To comply with FCC and or Industry Canada rules (IC), 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.
All Rights Reserved
Solution(s)
1. Check power connections to receiver
2. Supply power to receiver
Press ✱ and 0 keys at the same time
1. Add remote control to memory
2. Replace remote control battery
Remote controls section Or
Cycle power. If receiver exhibits this condition
again after 2 minutes, contact
Technical Support.
Security+ Keypads
®
377LM
379LM
Digital Remote Controls
361LM
362LM
363LM
333LM
®
1-800-528-2806
www.liftmaster.com
and Passport™