Established 1988 Fremont CA, 510-657-8700
we see is the safety sensors are not working. All garage door openers installed since 1991 have included a pair of photo eyes located near the floor on each side of the garage doorway. These sensors go by many names; infrared sensors, reverse sensors, safety beams and so on. They all do the same thing. If something obstructs the invisible beam while the door opener is in the closing motion, the opener will stop and reverse to the open position. If these beams are obstructed, misaligned or broken, the door opener will not even start in the close direction. 
If you do not have an owner's manual, here are a few suggestions to some common opener problems.
Door not Closing
FAQ for trouble shooting opener repairsThis is likely due to a broken spring on the door. Do a visual inspection of the door springs and call us if one or more are broken (there will be a space between the coils of the spring). 510-657-8700
If the spring is not broken, then you can release the door opener from the door by pulling on the manual release (typically red small rope hanging from the opener). This will allow you to open the door by hand. If you can not do this, there may be something much more serious and you should call us for advice or an appointment. 510-657-8700
See above to the most common repair paragraph.
If the remote transmitter seems to not work to close the door but will open the door, your issue is as described above in the most common repair. As a default, the remote will not work to close a door with an obstructed or misaligned safety sensor. If this is not the issue, then try a new battery in the remote transmitter. Your owner's manual may have additional suggestions.
This can be a dangerous symptom of a broken door spring. Do a visual inspection of the door spring above the door or on the sides of the door. If you see a gap in the coils of a spring, it is broken and needs to be replaced. Do not use your door or opener until the spring is replaced. This is a dangerous condition and should be addressed by a professional. Call Chandler Garage Doors at 510-657-8700
Below is a short video showing sensor symptoms and a possible repair. Trouble shooting sensor video 1.0 here: (Coming at a later date)
Visit our showroom to see the area's largest selection of door products from all of the major garage door companies. Our working door and electric door openers give you the hands on experience necessary for making the right choice. Whether it's a Genie or Lift Master garage door opener, or an Amarr or Wayne Dalton residential garage door, we have the perfect product to provide you with that "peace of mind" garage door installation.
Be sure to use only a licensed California contractor www.cslb.ca.gov Any company with even 1 employee must carry workers comp insurance and all companies must be bonded.
Huge selection of Styles, Models and Colors and Designs Wood Doors, Steel Doors or a
Combination of materials Call now for more information
510-657-8700
Huge selection of Styles, Models and Colors and Designs Wood Doors, Steel Doors or a
Combination of materials Call now for more information
510-657-8700
Chandler Garage Door Service maintains the largest fleet of residential garage door and opener repair trucks in the S.F. Bay Area. Radio dispatched,
Chandler Garage Door Service wants you to be happy with your residential garage door purchase or service. We have provided you with answers to the following Frequently
Established in 1988, George Chandler had a better idea for a "garage door company". His vision was to provide maintenance and repair as the primary component..