"M" error message on STIM

An "M" error message on the STIM display appears when an internal diagnostic test has failed.

Recommended Action(s):

  • Recharge both the STIM and head motion sensor in the dock until fully charged.
  • If the same error persists, take note of the number displayed (e.g. error M27) and contact Rehabtronics support by opening a support ticket.