Troubleshooting a Liftmaster Garage Door Opener

by | Jul 2, 2024 | Construction and Maintenance

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Lawrenceville, GA is a small town of 29,719 (2019 census results). The houses in the area feature Victorian architecture that was popular at the turn of the century. Most of these homes have garages. All garages need a good garage door opener. LiftMaster garage door openers are some of the best garage door openers in the market today.

Troubleshooting is invaluable if you have a Liftmaster garage door opener. When servicing a LiftMaster garage door opener Lawrenceville, GA, the most important step is the isolation of the section that is faulty. The problem could be in the installation, in the remote control, the opener mechanism or the radio receiver/logical circuit.

The installation should be such that there is smooth operation of the opener. You should be on the lookout for any ‘jumping’ of the hardware and door on initial movement since this is an indication that opener mechanism is pulling or pushing at the wrong angle. To troubleshoot the opener mechanism, disconnect the control wires (leaving the sensor wires in place) and short the white and red terminals momentarily using a small jumper wire. If no problem exists, the opener should operate normally.

To troubleshoot the solid state microprocessor logic board, note that every LiftMaster garage door opener that has a ‘yellow’ or ‘blue’ force adjustment dial comes with self-diagnosing capability. It is important that you know other common LiftMaster garage door opener Lawrenceville, GA problems and possible remedies. If the opener does not operate from remote control or door control push button, the problem could be that power is not reaching it, the overload protector could be tripped in the motor or the door control or bell wire could be shorted. Solutions are plugging in the opener, waiting for 15 minutes for the motor to cool down and removing the wires and retesting respectively.

Another common problem is the door operating from the door control push button, but failing to operate from the remote control. This could be as a result of dead remote control batteries, in which case you should replace them, a defective remote control, the lock switch being on or wrong coding on the remote control and receiver. If the reverse is the problem, the problem could be a defective door control, in which case you should disconnect the wires from the door control and short the white and red/white wires, or the bell wire might be open, in which case you should short the white and red terminals in the receiver logic board to determine if the bell wire is working. If the remote control has a shorter range than what is indicated in the manual, the problem could be a weak batteries, in which case you should replace them or the remote could be too close to the inside roof of the car, in which case you should pull down the visor and reset.

Other common problems in a LiftMaster garage door opener are garage doors opening and failing to close or closing by themselves, the motor humming, but not running and the motor running, but with no door movement. Call in a professional whenever you are faced by a problem you cannot solve by yourself.

LiftMaster Garage Door Opener It is important that you know how to troubleshoot a Liftmaster garage door opener since early detection of a problem means the problem will be solved before it worsens.

Visit the Select Door Service website to schedule an appointment or request an estimate.