4
Diagnostic Tests and Error Messages
Error Message
Probable Cause
Suggested Remedy
VAPORIZER
PRESSURE RAILED
HIGH
Vaporizer pressure always reads
200 torr.
Inspect wiring and connect-ors.
Replace failed component.
VAPORIZER
PRESSURE RAILED
LOW
Vaporizer pressure always reads
0 torr.
Replace vaporizer/condenser
assembly.
VAPORIZER
TEMPERATURE DID
NOT DROP
Vaporizer heater stuck on.
Replace vaporizer/condenser
assembly.
VAPORIZER
TEMPERATURE DID
NOT RISE
Vaporizer heater/sensor not
functioning within specification.
Inspect wiring and connect-ors.
Replace vaporizer/ condenser
assembly if failed.
VAPORIZER
TEMPERATURE
RAILED HIGH
Thermistor circuit failure.
Replace vaporizer/condenser
assembly.
VAPORIZER
TEMPERATURE
RAILED LOW
Thermistor disconnected.
Inspect wiring and connectors.
Replace vaporizer/condenser
assembly if failed.
VENT SENSOR STUCK
CLOSED or,
VENT SENSOR STUCK
OPEN
Vent valve sensor failure.
Inspect vent valve wiring and
connectors. Replace vent valve
if failed.
VENT VALVE
COMMAND ALWAYS
CLOSED or,
VENT VALVE
COMMAND ALWAYS
OPEN
Vent valve electrical failure.
Inspect valve wiring and
connectors. Replace vent valve
if failed.
VENT VALVE
PARTIALLY OCCLUDED
Filter on vent valve needs
cleaning or replacement.
Replace vent valve filter.
Replace vent valve.
VENT VALVE STUCK
CLOSED or,
VENT VALVE STUCK
OPEN
Vent valve mechanical failure.
Replace vent valve.
52 STERRAD
®
NX
™
Service Guide
Содержание sterrad NX
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