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TROUBLESHOOTING GUIDE
The Display will indicate detected malfunctions by displaying a caution or error code under affected BI wells. The audible alarm, if enabled, sounds and the Display flashes to
alert the user to all caution (except C1 and C3) and error codes. Press the touch button to stop the flashing and silence the audible alarm (if enabled). Refer to the following:
Code Problem Solution
C1 Unit Warm-up Caution
Incubation block not at temperature.
Allow a 30-minute warm-up after 3M™ Attest™ Mini Auto-reader 490M is plugged
in. (Note: 3M™ Attest™ BI readings are disabled until incubator block reaches
60ºC +/- 2ºC).
C2 BI Removed from Well Caution
3M™ Attest™ BI has been removed before incubation is complete.
Replace 3M™ Attest™ BI in proper well within 10 seconds to prevent loss of
collected data.
C3 Auto-reader heater block not within temperature specification
following a short power disruption.
No action is required, system will recover. C3 is displayed under incubating BIs for
which result has not yet been determined. Readings are suspended until heater
block temperature is within specification.
C6 Purple growth media not detected in biological indicator growth
chamber.
Readings will not begin until C6 caution code is cleared. To clear caution code,
remove BI and inspect to verify cap is closed, media ampoule is crushed, and
media has filled growth chamber at the bottom of the vial. If necessary, repeat
BI activation steps, FLICKING BI to distribute growth media to the growth chamber,
and return BI to incubation well.
E0 Calibration error detected. Contact Customer Support.
E1 Temperature Control Loss
Error occurs if system is no longer able to control the temperature of
the incubator heater block to 60ºC +/- 2ºC.
Unplug the unit and plug it back in to clear error.
If error doesn’t clear, unplug the unit and contact Customer Support.
E3 Memory Failure Error
3M™ Attest™ Mini Auto-reader 490M unable to save/read data from
memory.
Unplug the unit and plug it back in to clear error. If error doesn’t clear, contact
Customer Support.
E4 BI Inserted during unit warm-up Remove BI. Wait for C1 Caution Code to clear before incubating BI.
E5 Power Failure Error Ensure power supply connection to Auto-reader is secure.
Affected BI result(s) inconclusive as power to Auto-reader was off for too long to
provide valid result for affected BI(s).
Retest load/sterilizer with a new BI per facility policy.
E8 Optical Detection System Fault Detected
This error occurs for a specific well if the system detects that a UV
LED or optics detection circuit is not working properly.
Unplug the unit and plug it back in to clear error.
If error doesn’t clear, contact Customer Support.
Unaffected well(s) may be used to incubate BIs.
Other Unwanted alarm sounds when positive BI detected. Disable audible alarm. See instructions in 3M™ Attest™ Connect Settings
page section.
Other Alarm Sounds
3M™ Attest™ Biological Indicator has been removed from
incubation/reader well prematurely.
Replace 3M™ Attest™ Biological Indicator in incubation/reader well within
10 seconds to prevent loss of data collected.
Other Display does not function properly. Unplug the unit and plug it back in. If problem persists, contact Customer Support.
Other Negative Result for Positive Control BI
BI not properly activated. Media did not contact spore carrier.
Control BI was sterilized.
Ensure BI cap is closed and glass ampoule is crushed.
Flick BI until media flows to spore chamber at bottom of BI.
Check process indicator on BI cap. Use a non-sterilized BI as a control.
Other Unexplained Positive Result for Processed BI
Tape or label may impact result.
Do not place tape or labels on BI.
Other Display does not acknowledge BI Check BI orientation and ensure BI is properly seated in incubation well.
Only use BIs that are compatible with this device.
Contact Customer Support.
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