
Diagnostic Tests and Error Messages
4
Error Message
Probable Cause
Suggested Remedy
INLET COMMAND
ALWAYS OPEN
Replace failed component.
LOW PLASMA POWER
Plasma power out of
specification.
Replace LFPS II power supply.
MAIN FAN STUCK OFF
Main fan not functioning.
Inspect fan. Replace if failed.
NO PLASMA POWER
Plasma power out of
specification.
Replace LFPS II power supply.
OIL RETURN VALVE
STUCK CLOSED or,
OIL RETURN VALVE
STUCK OPEN
Oil return valve mechanical
failure.
Replace oil return valve.
PRINTER TEST
FAILURE
Printer not printing.
Replace printer assembly.
PUMP ALWAYS ON
Vacuum pump electrical failure. Inspect pump wiring and
connectors. Replace vacuum
pump assembly.
UNABLE TO LOCK
DOOR or,
UNABLE TO UNLOCK
DOOR
Door lock mechanical failure.
Replace door latch.
UV LIGHT IS BAD
UV lamp not functional.
Replace UV lamp.
VACUUM COMMAND
ALWAYS CLOSED or,
VACUUM COMMAND
ALWAYS OPEN
Electrical or mechanical failure. Inspect valve wiring and
connectors. Replace vacuum
valve if failed.
VACUUM CONTROL
VALVE STUCK CLOSED
or,
VACUUM CONTROL
VALVE STUCK OPEN
Vacuum control valve
mechanical failure.
Replace vacuum control valve.
VACUUM
INSUFFICIENT FOR
PLASMA
Leak in chamber or wet load in
chamber.
Troubleshoot for vacuum leaks.
Inspect door seal and replace if
worn or damaged. Inspect and
retighten Ultratorr fittings.
VACUUM SENSOR
STUCK CLOSED or,
VACUUM SENSOR
STUCK OPEN
Vacuum valve sensor failure.
Inspect vacuum valve wiring
and connectors. Replace
vacuum valve if failed.
STERRAD
®
NX
™
Service Guide
51
Содержание sterrad NX
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