We had a tech come out and he found the problem with the card. Let me just say I in know way feel qualified to diagnosis any problems with this lift. The lift just randomly shuts off so he felt the card was doing it. He tapped on it and the lift shut down so he believes thats one of the problems. The control stick is warn out and needs to be replaced also and it doesn't seem to be that difficult a fix (Im sure Im wrong probably a nightmare). If it were up to me I'd have the tech fix it but the boss feels this is something we can do. Im just looking to gather info to present to him pros and cons in doing it our self's.