To Next PageTo Next PageWhat to do if my Chamberlain 8355 Garage Door Opener won't close and the light bulbs flash?
If your Chamberlain Garage Door Opener won't close and the light bulbs flash, it might be due to misaligned or obstructed safety sensors. Realign both sensors, ensuring both LEDs are steady and not flickering. Also, ensure that nothing hanging or mounted on the door interrupts the sensor's path while closing.
Why Chamberlain Garage Door Opener won't close and the light bulbs flash?
If your Chamberlain Garage Door Opener won't close and the light bulbs flash, the safety sensors may not be installed or connected properly, or the wires might be cut. Inspect the sensor wires for any disconnection or cuts.
How to fix Chamberlain 8355 Garage Door Opener when it will not close and the light bulbs flash?
If your Chamberlain Garage Door Opener won't close and the light bulbs flash, a possible cause is a short or reversed wire for the safety sensors. Inspect the safety sensor wire at all staple and connection points. Replace the wire or correct it as needed.
What to do if Chamberlain 8355 Garage Door Opener doesn't close and light bulbs flash due to faulty door control?
If your Chamberlain Garage Door Opener won't close and the light bulbs flash, the wires for the door control could be shorted, or the door control itself may be faulty. Inspect the door control wires at all staple and connection points, replacing or correcting the wire as necessary.
What causes Chamberlain 8355 Garage Door Opener to not close and the light bulbs to flash with communication error?
If your Chamberlain Garage Door Opener won't close and the light bulbs flash, there might be a communication error with the travel module. Check the travel module connections and replace the travel module if needed.
Why is my Chamberlain Garage Door Opener not closing and the light bulbs are flashing?
If your Chamberlain Garage Door Opener won't close and the light bulbs flash, manually open and close the door. Check for binding or obstructions, such as a broken spring or door lock, and correct as needed. Replace the motor if necessary.
How do I fix Chamberlain Garage Door Opener that won't close and the light bulbs flash?
If your Chamberlain Garage Door Opener won't close and the light bulbs flash, program travel to coasting position or have door balanced by a trained door systems technician.
Why Chamberlain 8355 won't close and the light bulbs flash due to battery backup charging circuit error?
If your Chamberlain Garage Door Opener won't close and the light bulbs flash, it may be due to a battery backup charging circuit error. Replace the logic board.
How to troubleshoot Chamberlain 8355 that won't close and flashes lights?
If your Chamberlain Garage Door Opener won't close and the light bulbs flash, manually open and close the door. Check for any binding or obstructions, such as a broken spring or door lock, and correct as needed. Check wiring connections at the travel module and at the logic board. Replace the travel module if necessary.
What to do if Chamberlain 8355 Garage Door Opener won't close and the light bulbs flash and there are obstructions?
If your Chamberlain Garage Door Opener won't close and the light bulbs flash, manually open and close the door. Check for binding or obstructions, such as a broken spring or door lock, and correct as needed. If the door is binding or sticking contact a trained door systems technician. If door is not binding or sticking attempt to reprogram travel.
General| Drive System | Chain Drive |
|---|---|
| Horsepower | 1/2 HP |
| Motor Type | DC Motor |
| Smart Technology | Yes |
| Battery Backup | Yes |
| Safety and Security Features | Security+ 2.0 |
| Remote Controls Included | 2 |
| Security | Rolling code technology |
| Safety Features | Safety sensors |
| Lighting | LED |
| Warranty | Limited Lifetime (Motor), 1-Year (Parts) |
Explains safety symbols and signal words used in the manual for hazard communication.
Verifies garage door balance, binding, and seal for safe opener operation.
Provides critical safety warnings regarding mechanical and electrical hazards during installation and operation.
Lists all components included in the garage door opener package for installation.
Connects the opener rail to the main motor unit using provided hardware and instructions.
Adjusts the belt tension for proper operation and smooth movement of the garage door opener.
Outlines critical safety warnings and mandatory steps for a secure and safe garage door opener installation.
Provides essential safety guidelines to prevent serious injury or fatality during the installation process.
Guides users on selecting the optimal position for the header bracket based on door type and clearance.
Details the process of securely mounting the header bracket to either the wall or ceiling.
Connects the opener rail assembly to the previously mounted header bracket using specific hardware.
Guides placement of the opener unit onto the ladder for safe lifting and alignment.
Secures the opener unit to structural supports using hanging brackets for stability.
Instructions for installing compatible light bulbs into the garage door opener unit.
Installs the manual release mechanism for safe operation during power outages or emergencies.
Mounts the bracket to the garage door for connecting the opener arm, with variations for different door types.
Links the door bracket arm to the opener trolley, allowing the opener to move the door.
Mounts the wall-mounted control panel and connects it to the garage door opener.
Connects the door control wiring to the main garage door opener unit for communication.
Affixes entrapment and safety test labels to the wall and garage door as required by safety regulations.
Explains the function and importance of the safety reversing sensors for preventing entrapment.
Lists essential checks for correct sensor installation, alignment, and beam obstruction.
Provides methods for mounting safety sensors on door tracks or walls for obstruction detection.
Details how to mount safety reversing sensors on the floor, using brackets if needed.
Connects the safety sensors to the garage door opener, covering pre-wired and new installations.
Explains how to connect safety sensors when wiring is already present in the garage.
Details how to safely connect the garage door opener to a power source via typical or permanent wiring.
Verifies correct alignment of safety sensors by checking LED indicators for proper operation.
Confirms the door control unit is correctly wired by checking its command LED indicator.
Explains how electronic controls allow for setting door open/close positions and force adjustments.
Sets the desired open and close limits for the garage door opener's movement.
Verifies the door reverses upon contact with an obstruction, ensuring safety.
Checks if the safety sensors prevent closing when obstructed, confirming system integrity.
Provides comprehensive safety guidelines for operating the garage door opener to prevent injury.
Describes alerts for closing doors and automatic closing features for convenience and security.
Explains wireless communication features for remote control and accessory compatibility.
Details energy-saving sleep mode and how garage door opener lights function and can be controlled.
Outlines how to activate the opener using various controls and its response to obstructions.
Instructions on operating the door opener via the wall-mounted control panel's push bar and light button.
Steps to pair the door control with the garage door opener for proper communication.
Explains features like Learn Device, Lock, Automatic Light, and Maintenance Alert accessible on the control panel.
Details how to configure LOCK, LIGHT duration, and activate/deactivate the Maintenance Alert System.
Guides on programming or changing remotes/keyless entry PINs using the door control panel.
Provides an alternative method to program remote controls directly using the opener's learn button.
Steps to clear all programmed remote controls and keyless entry devices from the opener's memory.
Instructions for manually operating the garage door by disconnecting and reconnecting the trolley.
Outlines essential monthly tasks for ensuring the opener and door operate safely and correctly.
Details yearly lubrication requirements and multi-year rail greasing for opener longevity.
Safety guidelines and instructions for replacing the battery in the remote control transmitter.
Lists common diagnostic codes (flashes) and their corresponding symptoms and solutions for troubleshooting issues.
Addresses specific problems like lights not turning off, neighbor's remote activation, and Homelink® programming.
Describes various compatible accessories like Internet Gateway, remote light switches, keyless entry, and smart control panels.
Outlines the one-year limited warranty for the product and lifetime warranty for motor and belt.
Lists part numbers for components related to the opener's rail assembly, including belts and pulleys.
Lists part numbers for installation components like door arms, brackets, sensors, and hardware.
Provides a detailed list of part numbers for the main garage door opener unit components.
Offers phone numbers and website for installation, service, and ordering repair parts.
