Kabayan,

This model is a bit old and if you google about it there was an issue of overheating because of sensor problems.
I still have an old C100 service manual and that was late 1989-90 model.
I know the situation that we Biomeds in our country are expected to repair equipment no matter how old or outdated. But in the interest of PATIENT SAFETY(and protection of the Biomed from legal issues later) I suggest an upgrade to a newer model.

bong