Section 5: Troubleshooting
The following conditions are listed in the order of which troubleshooting actions should be performed.
On Mode
Condition
Unit does not power up.
Displays
Condition
"Ready" screen
continues to display
while sensor is adhered
to the patient.
SN - 000000000
"Running" screen does
not appear on the
control unit.
36 7
C
36°
Patient temperature
does not appear on the
patient monitor.
The patient's
temperature output
on the control unit and
patient monitor is >
+/-0.2°C.
10
Cause
Unit is not plugged in, or power
supply is not plugged into an
appropriate outlet.
Unit failure.
Cause
Sensor not properly adhered to the
patient.
Low patient temperature (below 30°C).
Control unit failure.
Control unit may still be equilibrating.
Control unit failure.
Control unit may still be equilibrating.
Monitor cable is not plugged in.
Cable failure.
Control unit failure.
Cable failure.
Action
Make sure the power supply is plugged into
the control unit. Make sure the control unit is
plugged into an appropriate power outlet.
Contact 3M technical service.
Action
Make sure the sensor is connected to
the patient.
Press and hold the °C/°F button on the
back of the control unit for five seconds
to force the control unit into equilibration
mode. The patient's temperature will
then display.
Discontinue use of unit. Contact 3M
technical service.
Wait until the control unit has finished
equilibration. Continue use.
Contact 3M technical service.
Wait until the control unit has finished
equilibration. Continue use.
Make sure the monitor cable is plugged
into the control unit and patient monitor.
Replace monitor cable.
Contact 3M technical service.
Contact 3M technical service after use.
Make sure the monitor cable is securely
plugged into the control unit and patient
monitor.
Replace monitor cable.
Verify monitor output (see Section
5 of the Installation and Preventive
Maintenance Manual).
Contact 3M technical service.