Sorry I missed your question. I repair all brands of roll laminators in the western pa area. each roller has a heater in it. GBC tend to work well but the costs of parts and service is astronomical. the heater cost around 500 bucks per pair. they eally need to both top and bottom at the same time.
you may be able to recrim the connection at the end of the non heating roller. to get it working again. telephone tech support is always free you can call me at 412 366 4906
bob haller service and sales
July 2016