Repair of 90's vintage Universal XT 1500 treadmill motor controller.

Thread Starter

Rick Neill

Joined Aug 26, 2021
I've repaired an old Universal XT 1500 treadmill motor controller and offer my repair notes here for anyone interested. The treadmill is owned by an emergency ward heart surgeon who has enjoyed a very long and loving relationship with his favourite exercise device. After repair he was very keen for me to leave him with something close to a service manual because nothing can be found on the web. I reverse engineered a large portion of the MCB and produced 3 schematics. Some errors and oversights probably still exist but the document remains a helpful resource. Included with the details of the repair are some general comments about treadmill care and maintenance. "Loop" errors are common with this treadmill and although this wasn't the fix required, some advice is given about dealing with a loop error.