12 Tips and assistance
73
12
Tips and assistance
12.1
Questions and answers
Question
Possible causes/solution
flashes
Batteries are almost empty.
> Change the batteries.
The device switches itself off.
Residual capacity of batteries too low.
> Change the batteries.
Below range
lights up instead of the
measurement parameter display
The value is below the permissible
measuring range.
> Keep within the permissible
measuring range.
Above range
lights up instead of the
measurement parameter display
The value is above the permissible
measuring range.
> Keep within the permissible
measuring range.
12.2
Error Codes
12.2.1
Main screen
Code
Possible cause / solution
E 11
Remove the batteries and reinsert them in the instrument. If the
error persists, please contact our service department.
E 12
E 13
E 14
E 15
12.2.2
Status view
Code
Possible cause / solution
E 30
An old version is still running on the testo 550s / testo 557s. Update
the instrument. If the error persists, please contact our service
department.
E 31
testo 550s / testo 557s is still using the old version refrigerant. If you
wish to use the latest refrigerant, please update it again. If the error
persists, please contact our service department.
E 32
Remove the batteries and reinsert them in the instrument. If the
error persists, please contact our service department.
www.
.com
1.800.561.8187
