Genie Excelerator Model Number ISD990, bought 3/21/2004It was relatively easy to install and worked pretty well for 5 years. Almost daily use. Then after 5 years it started to have problems opening. It would only open half way and stop. It always closed properly. After a week or so of intermitent problems, it started not opening at all. I had to reset it (pull power) to get it to work. Then it just quit altogether. All the lights work, it just wont open. The green status light flashes continuously.I called tech support and they say the circuit board needs to be replaced. 5 year warrenty on parts is expired. Cost of about $130 if i replace the head unit or replace the circuit board. Either way.I just expect things to last longer. 5 years is way too short for a garage door. Not impressed with Genie. Looking for a replacement with a better brand vs. fixing the old board.