128
MAINTENANCE
F
Error Messages
“MOTOR OVER-
SPEED”
“CHECK HAND-
PIECE”
“CANNOT ID
HANDPIECE”
messages display.
♦ Handpiece, handpiece cord and/
or controller faulty.
♦ Replace handpiece. If symptom is
corrected, return handpiece for
service.
♦ Else, replace handpiece cord. If
symptom is corrected, return faulty
handpiece cord.
♦ Else, return controller for service.
♦ Remove both handpieces from the
top section to clear the fault
condition.
“STALL CHECK
BUR LOCK”
message displays.
♦ Bur lock in open position.
♦ Handpiece, handpiece cord and/
or controller faulty.
♦ Put bur lock in lock position.
♦ Replace handpiece. If symptom is
corrected, return handpiece for
service.
♦ Else, replace handpiece cord. If
symptom is corrected, return faulty
handpiece cord.
♦ Else, return controller for service.
Symptom Possible Cause Corrective Action