8. Alarms and Troubleshooting Guide
8-119
ALARM MESSAGE
POSSIBLE CAUSE
SYSTEM RESPONSE
OPERATOR ACTION
WATCH DOG
(no message)
Internal computer
malfunction. Hardware
override circuit detects
processor not operating
properly.
Stop pumping and
heating. Sounds a
high pitch tone.
Restart the system, service machine if error persists – replace Computer
board.
CAUTION:
In a Watch Dog alarm condition and fluid in the disposable set, keep the
patient line clamped closed when opening the door to prevent uncontrolled
fluid flow.