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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�
