Just wall switch work, when i try the transmitters a small yellow light flashes 4 times. Created by dwilkinson84. Electrical Supplies - liftmaster - Chamberlain Garage Door Opener Transmitter 300MC

Just wall switch works transmitters won't light

dwilkinson84 @dwilkinson84

March 2021 1 11 Report

Just wall switch works transmitters won't light

Just wall switch work, when i try the transmitters a small yellow light flashes 4 times

Electrical Supplies - liftmaster - Chamberlain Garage Door Opener Transmitter 300MC

Answers & Comments

Vince Heuser

You probably have the opener lock turned on. Press and hold the lock button on the wall button pad for four seconds. The green light will go solid instaed of flashing

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