Very Odd Garage Door Problem
For the last few months I've been having intermittant garage door opening problems. On some days when opening or closing, the door will just freeze and stop moving, sometimes near the top, bottom or mid-way. The opener light will start flashing and it will take several attempts at opening and closing for it to finally stop freezing at some point. Then the problem will go away for several days and suddenly come back again. I haven't tried checking the door balance, but the alignment sensors appear to be working fine. Any help would be appreciated.