Troubleshooting - Innovo INV-EF100 Instruction Manual

●Please remove the battery if you will not be using the thermometer for
an extended period of time.
9.

Troubleshooting

Symptom
The
thermometer
fails to power on.
Battery symbol
displayed when
thermometer
powers on.
"Er1" is
displayed.
The temperature
reading is lower
than the typical
body
temperature
range.
Possible Cause
The battery level is
extremely low.
Polarities of the
batteries are
reversed.
The thermometer is
faulty.
The battery level is
low.
The ambient
temperature is lower
than 10.0°C (50.0°F)
or higher than
40.0°C (104.0°F).
The infrared sensor
is dirty.
The thermometer
probe is not aligned
12
Solution
Use new batteries of the
same model or
specifications.
Ensure that the batteries
are correctly installed
according to the polarity
symbols in the battery
compartment.
If the warranty period has
not expired, contact the
manufacturer.
Use new batteries of the
same model or
specifications.
Take a measurement under
an ambient temperature
between 10.0°C (50.0°F)
and 40.0°C (104.0°F).
Clean the sensor using a
cotton swab moistened with
alcohol. The sensor surface
should be reflective and
gleaming.
Reposition the
thermometer probe so that