I have a Steel-line ST50EVOB Garage door that intermittently stops responding to remote control devices (mutliple units) like as if it has gone to sleep. There is a pattern where once I "manually" open the door by pressing the blue button on the Main control unit the door starts operating normally with all remote control fobs no problem

... however

If the door is not used for a few days or a week or so the main unit goes back into a "sleep" mode.

I will be contacting the manufacturer/supplier this week, it would be great though if members here have experience or advice to offer here ??

Many thanks in advance