Rated 4.9 out of 5 stars.
Need to fix your Hörmann garage door opener? This genuine Hörmann circuit board (model D437633) is the part you're looking for. It's brand new, designed for the SD5500 opener series. Direct replacement for the electronic logic board—just swap it out and get your door working again. MPN D437633, unbranded box but genuine part. No UPC, but it's the right board. Save on a service call and do it yourself!
