MaxTester Copper Test
253
15 Troubleshooting
Solving Common Problems
The table below presents common problems and their solution.
Problem
Possible Cause
Solution
Impossible to turn on unit.
You did not press
long enough.
Battery discharged.
Battery is missing.
Unit temperature is too
cold or too hot.
Press for a few
seconds.
Charge battery by
connecting the AC
adapter/charger.
Insert a battery and
replace battery back
panel.
Make sure that the unit is
within the operation
temperature range. You
might have to wait for the
unit to warm up/cool
down.
Battery does not charge as
expected.
Temperature is too
high.
Battery is incorrectly
connected.
Ensure temperature is
within specifications.
Ensure battery is
connected properly.
A battery status LED is red.
Battery temperature is
too high.
Battery is defective.
Shut down the unit by
pressing
and holding
it down for more than
10 seconds and/or until
the power LED goes off.
Wait for the unit to cool
down, and then reboot it.
Contact EXFO or replace
the battery.