Yesterday my Run Chicken T50 has decided to give up after 3.5yrs in use.
Seemed like a great unit while it lasted, I've been reminded the last two days of how awesome auto-doors are!
Contacted Customer Service and they were very responsive, asked questions and wanted some videos. My unit is definitely past the 12month warranty so it's not covered, but they did offer a discount on the replacement drive unit.
Not really sure what failed on mine, something electronic for sure as it's completely unresponsive to new batteries and showed no signs of degrading in the last few weeks. It's been dry the last week and weather only into the high 30s, so it's unlikely due to getting wet or freeze/thaw issue.
They did note from my video that I likely have buildup inside the door track, preventing door from closing 100% - this is something I've had to clean out a few times in ownership with a metal wire - at the very bottom of track is a small protrusion that's the "stop" for the door, and slowly dirt can accumulate there over time. Last year it built up enough the door was leaving a 1/8" gap a the bottom, lol. If you have one of these doors, you may want to inspect yours.
So yeah, I think I'm just going to buy the replacement drive unit and keep on truckin' with the T50 Run Chicken door