LiftMaster 8500W Support Question
LiftMaster 8500W Support Question
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Question posted by ttbaumann on January 17th, 2023
Liftmaster 8500w. Error Code 3-5
Our Liftmaster is showing error code 3-5 Cable Tension Failure. This garage door is fairly new.
Current Answers
Answer #1: Posted by MercedesAMG on January 17th, 2023 4:11 PM
MercedesAMG
Member since:
January 26th, 2013 Points: 193,710
Member since:
January 26th, 2013 Points: 193,710
Error code 3-5 on a Liftmaster 8500w garage door opener indicates a cable tension failure. This error can occur when there is not enough tension on the opener's lift cables, causing the opener to sense that there is an obstruction on the door. There are a few possible causes for this error, and some possible solutions include:
- Loose or broken cables: Check the lift cables that run from the opener to the door to see if they are loose or broken. Tighten or replace any loose or broken cables as needed.
- Misaligned or damaged opener: Check to see if the opener is misaligned or if there is any damage to the opener's components. If the opener is misaligned, you may need to adjust the opener's alignment. If there is damage to the opener's components, you may need to replace them.
- Incorrectly installed opener: Make sure that the opener is installed correctly and that the opener's components are properly aligned. If the opener was not installed correctly, you may need to have a professional come out and correct the installation.
- Overhead obstruction: Check if there is anything blocking the opener's travel, something like a ladder, tool, or other large object that may have been placed too close to the opener.
- Safety sensors: Make sure that the safety sensors are properly aligned and that there is nothing blocking the sensors. If the sensors are not properly aligned or are blocked, the opener will not be able to sense that the door is closed and will not be able to operate.
If the problem persists after trying these steps, it's best to contact an authorized technician or the manufacturer for further assistance. It is important to not neglect this error as it could cause damage to the opener or even injuries.
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Answer #2: Posted by SonuKumar on January 17th, 2023 7:13 PM
SonuKumar
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Related LiftMaster 8500W Manual Pages
Wiring Diagram For Standard Lift Doors With RJO Operators - Page 1
...cable cover plate. is required between operator and electrical outlet. Center of the garage door operator.
300 Windsor Drive Oak Brook, IL 60523
LiftMaster.com
Optional outlet for all wires (Located Behind Opener) 4.
to 4' ft. LiftMaster Wall-Mounted Door...extra wiring at Right. 5. Cable
Cable Tension Monitor
(To cable tension monitor) Multiple door gang boxes must be noted ...
Owners Manual - Page 1
...; Garage Door Opener
Models 8500W, 8500W-267
For Residential Use Install On Sectional Doors With Torsion Assemblies Only
This product is intended for use on low headroom tracks or garage doors utilizing extension springs.
•• Please read this manual and the enclosed safety materials carefully!
•• The door WILL NOT CLOSE unless the Protector System® and cable tension...
Owners Manual - Page 2
... You May Need 6
ASSEMBLY
7
Attach the Collar to the
Garage Door Opener 7
Attach Mounting Bracket to
Garage Door Opener 8
INSTALLATION
8
Position and Mount the
Garage Door Opener 9
Attach the Emergency Release Rope
and Handle 10
Install Automatic Door Lock 10 Attach the Cable Tension Monitor (Required 11 Install the Door Control (Smart Control Panel 12 Install myQ Remote LED...
Owners Manual - Page 3
...bar while the door is not corrected, the life of the garage door opener will require ...Door spring
g
f h
3 The torsion bar must extend at least 1.5" (3.81 cm) past the bearing. If the movement is raised and lowered. Select the side that meets the requirements listed below apply to your installation. d. The torsion bar must be needed to install safety reversing sensors and cable tension...
Owners Manual - Page 6
... with Connector NOTE: Older model 24V door locks are incompatible
Mounting Bracket
Garage Door Opener
2 Conductor Bell Wire White and White/Red
The Protector System (2) Safety Reversing Sensors (1 Sending Sensor and 1 Receiving Sensor) with 2-Conductor White and White/Black Bell Wire attached
Collar with Set Screws
Battery Model 485LM
Cable Tension Monitor with 2-Conductor Green/White...
Owners Manual - Page 11
... obstructions. NOTE: There must have tension through entire door travel , adjust cables as the door opener. Run bell wire to garage door opener)
Drum
To insert or release wire, push in the down direction. If one of door during door travel . The cable tension monitor detects ANY slack that prevent the cable tension monitor from the opener.
Then plug in the monitor...
Owners Manual - Page 20
... position press and release the Adjustment Button. If the garage door opener lights are unable to operate the door up and down cycle using the remote control or the UP and DOWN buttons. If the garage door opener lights are misaligned or obstructed (refer to page 18). Ensure the cable tension monitor is complete.
When the sensors are aligned...
Owners Manual - Page 22
... detect slack in the down a second time until a click noise is free from the door opener and lift the door manually. The door will flash diagnostic code 3-5, see page 32. To prevent possible SERIOUS INJURY or DEATH from the door opener.
If your cable tension monitor has been activated the UP and DOWN arrows will reconnect on the front...
Owners Manual - Page 32
...4
5
Opener runs approximately Communication error to -
If the door is not binding or sticking
attempt to reprogram travel module if necessary. is hanging or mounted on the garage door opener flash the diagnostic codes. Replace logic board if necessary.
If door is binding or sticking
contact a trained door systems technician. The UP and DOWN arrows on the door that the cable tension...
Owners Manual - Page 33
... itself: • Be sure that cable tension monitor is a new installation see Adjustment Step 1. Review Installation Step 5. • Is there a build-up of travel while being supported entirely by its springs. For an existing installation, see page 3 for no apparent reason and garage door opener lights don't blink: • Check that cable tension monitor is an intermittent short...
Owners Manual - Page 37
...to 4 myQ compatible garage door openers or gate operators and close them from being
manually opened once
the door is obstructed.
041A6104
Cable Tension Monitor:
Cable tension monitor with 33 ... to the door opener or a remote control.
825LM Remote Light Control:
Automatically control your lights
using your garage door opener,
a Security+ 2.0 remote control
or a LiftMaster Internet Gateway....
Quick Start Guide - English French - Page 1
... or obstructions, such as needed . m). ALL repairs to the garage door opener, pull the emergency release handle straight down on the door that prevent the cable tension monitor from each set screws to the garage door opener on the garage door opener flash the diagnostic codes. Release the door. Screw 6ABx1-1/4" (2)
Drywall Anchors (2)
Screw 6-32x1" (gang box) (2)
C
Light...
Instructions - English French Spanish - Page 1
...door lock and cable tension monitor from that interference will need this device must be determined by one or more information go to cause cancer or birth defects or other reproductive harm. E
6. Use the MyQ app to add the
new... equipment. Route the antenna through the channel in a residential
installation.
Open the front panel (A). WARNING: This product can expose you begin. ...
Instructions - English French Spanish - Page 2
..., the safety reversing sensors are misaligned or 5
obstructed (see owner's manual) then follow the steps for Program the Travel. Ensure the cable tension monitor is in the desired
1
DOWN position.
5. The garage door opener lights will flash twice and
the DOWN Button will begin to flash.
7. Press and release the UP Button. Programming is in...
8500W Users Guide - English French - Page 1
....prodregister.com/LiftMaster
SM
Take a photo of the operator. • This garage door opener is intended for use on low headroom tracks with outside pickup drum or garage doors utilizing extension springs.
• Please read this manual and the enclosed safety materials carefully! • The door WILL NOT CLOSE unless the Protector System® and cable tension
monitor are...
8500W Users Guide - English French - Page 14
... garage door opener lights will flash twice and the DOWN Button will begin to flash.
1.7 Press and release the DOWN Button. Programming is in the
desired DOWN position press and release the Adjustment Button. While programming, the UP and DOWN buttons can be tested. Ensure the cable tension monitor is complete. If the cable tension...
8500W Users Guide - English French - Page 17
... the ground. It may be frozen to reset it is programmed to ensure the garage door opener is a new installation see Installation Step 4).
The door may take up to the jackshaft. Remove any obstructions. Remove the obstruction or repair the door. If a 2nd cable tension monitor has been removed, unplug and plug in the down as it is...
8500W Product Guide - English - Page 2
.../Unattended Close Operation††
-- Garage Door Opener Capacity of Wi-Fi Alliance. HomeKit is a registered trademark of up to all LiftMaster® openers manufactured since January 1993. Force Ad ju... track. from garage door opener and myQ accessories.
-- MASTERFUL ENGINEERING.
8500W
DC BATTERY BACKUP WALL MOUNT
MOTOR
POWER
WI-FI® GARAGE DOOR OPENER
--H ea vy...
Accessory Compatibility Chart - Page 1
... LiftMaster Security+ 2.0 Garage Door Opener, Gate Operator and Commercial Door Operator. ACCESSORY COMPATIBILITY CHART
Remote Controls
Garage Door Opener Manufacture Year Learn Button Color Frequency Code Model Numbers
Pack - X
- Program and control a single Garage Door Opener, Gate Operator or Commercial Door Operator. - With Security+ Rolling Code Technology, users are assured of a new...
Accessory Compatibility Chart - Page 2
...in the garage. - Controls one Garage Door Opener and opener lights.
- LCD Panel shows time, temp and maintenance alerts.
- Motion detector activates the Garage Door Opener lights as soon as movement is detected. - Lock button blocks the garage door from being opened by remote controls. †Not compatible with LiftMaster Security+ 2.0 and Wi-Fi Garage Door Openers. Compatible with...
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