18 Troubleshooting; Solving Common Problems - EXFO MaxTester 635G User Manual

18 Troubleshooting

Solving Common Problems

The table below presents common problems and their solution.
Problem
Impossible to turn on unit.
Battery does not charge as
expected.
A battery status LED is red.
Copper and G.fast/VDSL2/ADSL2+ Multi-play Test Set
Possible Cause
You did not press

long enough.
Battery discharged.

Battery is missing.

Unit temperature is too

cold or too hot.
Temperature is too

high.
Battery is incorrectly

connected.
Battery temperature is

too high.
Battery is defective.

Solution
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.
Ensure temperature is

within specifications.
Ensure battery is

connected properly.
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.
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