Polar 115 back gauge traveled back of own accord and will not move p

M/c was switched on and a back gauge moved back, the mc then travelled all the way back and will now not move, any suggestions? Have tried resetting bat and switched off completely. Ref point is also showing but we know how to fix that.

 

115 which model? Serial number?

 

Model is the emc

Not sure on serial no as not at work. Model emc

 

Model 115 mon
Serial 6012490

 

Model 115 mon
Serial 6012490

 

OK,
First check the micro switches in the handwheel. Especially the switch of the center button. Most of the times They get stuck.

 

Thanks, all sorted,