Magstim FAQ 4
4. I have an 'E??' message on the stimulator, what does it mean?
An 'E??' message displayed on the Magstim 200² or the Rapid² means that the internal CPU has detected an error with the equipment.
A 'C??' message relates to a fault with the coil.
A 'U??' message relates to a fault with the universal interface display.
Please click on the following link for a list of all Magstim System Messages, their possible causes and suggested solutions.
Download: Magstim System Messages.pdf
