I recently picked up a model C with a PM5 monitor fitted, due to age I decided I would install the silencer kit and change the shock cord, all this went well and the unit was working fine... Then I decided as it's all working to reset the PM5 so the lifetime miles were my lifetime miles and after a refresh was the perfect time.
Unfortunately since resetting the unit it no longer registers any movement on the machine

It was working fine before the reset so I know it will work with the unit but am I missing something that I need to do to register it to the machine?
Going to update firmware soon as it's currently on firmware 20 but any help would be excellent.
Cheers.