8 Tips and assistance
17
8
Tips and assistance
8.1.
Questions and answers
v
Question
Possible causes/solutions
flashes and
E145
lights up
The instrument temperature is outside
the permissible range:
> Let the instrument warm up or cool
down.
flashes and
E161
lights up
or
flashes and
E419
lights up
or
flashes and
E999
lights up
A serious error has occurred:
> Contact your dealer or the Testo
Customer Service.
flashes
Battery capacity too low
> Connect the mains unit.
and
flash,
E401
lights up
Rechargeable battery is empty,
instrument will soon switch off
automatically.
> Connect the mains unit (the warning
can be deleted with
[Hold/Max/Min]
).
and
flash
Recharging the battery is impossible:
> Contact your dealer or the Testo
Customer Service.
Can the battery be
replaced?
The battery cannot be replaced.
> Contact your dealer or the Testo
Customer Service.
Can the battery be
charged via the USB
port of a laptop or
PC?
The battery cannot be charged.
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