CycleOps Saris Hammer H1 Direct Drive Smart Turbo Trainer, Power Reading Fault

CycleOps Saris Hammer H1 Turbo Trainer. Purchased on here a while ago from a seller who stated that it would not connect to Zwift but would work with other apps. The trainer switches on fine (power cable included) and connects to TrainerRoad (I can't guarantee it connects to any other app) but there is an issue with the power reading as when I'm pedalling as fast as possible I am unable to reach the power output needed for calibration in TrainerRoad. May be fixable for someone in the know. Check out my other items. Condition is for parts or spares. Dispatched with Parcel2Go courier.

eBay