18.
Welcare Ear Thermometer
Important Safety Information
- continued
Storage
• Place the thermometer back into the original packaging
after use.
• Store the thermometer and probe covers in a dry
location, free from dust and contamination and away
from direct sunlight.
Troubleshooting
Error
Code
Problem
Solution
Er 1
Measurement
taken before the
thermometer is ready
Take a measurement
until appears on
the display.
Er 2
The ambient
temperature is not
within the range
between 10°C and
40°C (50°C~104°C).
If the thermometer is
stored in a significantly
different environment
than testing location,
place it in the
testing location for
approximately 30
minutes prior to use.
Er 3
The thermometer is
placed incorrectly in
the ear.
Read Measuring
Ear Temperature
on page 13. Take
a new temperature
measurement.
Er 4
The thermometer
showing a rapid
ambient temperature
change.
Allow the thermometer
to rest in a room for
at least 30 minutes at
room temperature:
between 10°C and
40°C (50°F~104°F)
Er 5
The thermometer
is not functioning
properly.
Remove the batteries,
wait for 1 minute
and repower it. If the
message reappears,
contact the retailer for
service.
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