3M Steri-Vac GS Series, Operator'Smanual

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15.3. Error Levels and Corrective Actions
Look up error level in Table 7 for appropriate corrective actions.
Error
Code
Level Description Example Error Corrective Action
L1
Errors that occur before ethylene oxide (EO) gas
is in the chamber and does not require immediate
Service attention.
− Chamber too hot to start a new cycle
− Timeout attempting to reach target % RH set-point
Operator can clear error and access load.
Wait until
Open Door or Open Load Door
button is blue.
Press
Open Door .
Press Clear to clear the error.
Document per facility procedures.
Restart cycle per facility procedures.
L2
Errors that occur before EO gas is in the chamber and
require Service attention. Operator can open load door
before Service arrives.
− Cooling fan failure before EO Injection
− 12V/24V power supply failure before EO Injection
Operator can access load.
Wait until
Open Door or Open Load Door
button is blue.
Press
Open Door .
Call Service. Service must clear the error.
Document per facility procedures.
Restart cycle per facility procedures.
L3
Errors that occur before EO gas is in chamber and
requires Service attention before Operator can open
load door.
− Puncture pin not detected in home position (pin
deployed) in idle state
− Service aborted cycle
Call Service.
Service must access load and clear
the error.
Document per facility procedures.
Restart cycle per facility procedures.
L4
Errors that occur after EO gas is in the chamber.
Pressure and temperature sensors can return system to
a safe state. Supervisor or individual with higher access
must clear error. System will then return to main screen
where door can be opened.
− Monitoring sensor failures after EO Injection
Supervisor or Service must clear the error.
Wait until the Stop button is red.
Supervisor or Service press Stop Cycle and
enter PIN. Supervisor or Service press Clear and
enter PIN to clear the error.
Document per facility procedures.
L5
Errors that occur after EO is in the chamber. Pressure
and temperature sensors can return system to a safe
state; however, Service is required to open load door.
− Leak detected in EO Expose stage
− Puncture pin not detected as retracted in Gas
Injection stage
Call Service.
Service must access load and clear error.
Document per facility procedures.
L6
Errors that occur after EO is in the chamber.
Pressure sensors can return system to a safe state
but temperature sensors cannot. Service attention
is required. − Chamber over temperature and under temperature
failures after EO Injection
Call Service.
Service must access load and clear error.
Document per facility procedures.
L7
Errors that will require 3M Service. EO may or may not
be present in the chamber. Errors that occur during an
Error Recovery stage will be elevated to L7. Service
attention is required.
− Failure in controller pressure sensor after EO Injection
− Exhaust line blockage detected
Call Service.
Service must access load and clear error.
Document per facility procedures.
A1 Not Used Not applicable Not applicable
A2
Errors in temperature control that occur during
programmed aeration. Service attention is required. − Chamber over temperature or under temperature
during aeration
Call Service.
Service must access load and clear error.
Document per facility procedures.
A3
Errors that occur during programmed aeration and
require Service attention.
− Loss of compressed air during aeration
− Power supply failures during aeration
Call Service.
Service must access load and clear error.
Document per facility procedures.
Table 7. Descriptions for Error Levels and Corrective Actions