garage door opener clicking and light flashing

However, often, if the lights on the opener are flashing or blinking, you may not have a working door opener. If you have a Liftmaster, Chamberlain, or Craftsman garage door opener that will only travel a few inches in either direction that may indicate that the RPM sensor is bad or that the RPM sensor motor shaft has come unseated. The light should be solid normally. The other night, I went out to the garage and noticed that the garage door opener light was flashing. I got a call it was for a liftmaster opener don’t know exactly which model but it was purple button motherboard and it made a rapid clicking noise and the wall button light was also flashing Symptoms and model number are given in the attachments. (adsbygoogle = window.adsbygoogle || []).push({});