EXFO MaxTester 635 - Manual (Page 333)

Copper and VDSL2/ADSL2+ Multi-play Test Set 325
18 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.