SP00D00616 2019-11-08| Robert Bosch GmbH
Diagnostic messages | ACS 663 | 77 en
Message on the display Cause Solution
Out of range
ISV pressure sensor
The internal tank pressure transducer does
not correctly read the pressure.
Exit the current check and contact an authorized
Bosch service center for more information.
Out of range
ISV temperature
The internal tank temperature sensor does
not correctly read the temperature.
Exit the current check and contact an authorized
Bosch service center for more information.
Out of range
Low pressure side pressure
sensor
The low pressure side pressure transducer
does not correctly read the pressure.
Exit the current check and contact an authorized
Bosch service center for more information.
Power board communication
failed
The communication with the power board
failed
Restart the station. If the problem persists, contact
an authorized Bosch service center for more
information.
Unsuccessful pressure test
Check for leaks
There is a leak in the A/C system of the
vehicle.
Exit the current test and repair the A/C system of the
vehicle.
Empty external tank Failure to transfer refrigerant to the internal
tank because the external tank is empty.
Exit the current test and replace the external tank.
Full tank. Remove refrigerant
from the internal tank before
continuing
Internal tank too full to recover more
refrigerant.
Perform a refilling process to remove refrigerant
from the internal tank before performing any further
recovery attempt.
Expired trial time.
Activation of the required unit
to continue using it.
Activate now?
Failure to register and activate the machine
within 30 days of initial start-up causes the
machine to lock and the impossibility to use
it.
Select
and see the Unit activating section of this
manual to register the station.
Vacuum test failed. Check for
leaks
There is a leak in the A/C system. Exit the current test and repair the A/C system of the
vehicle.
Refrigerant purity not
exceeded (if present)
The refrigerant contained in the A/C
system of the vehicle is not R1234yf or is
contaminated.
Do not recover contaminated refrigerant in the
station; use an external refrigerant recovery station
specifically dedicated to contaminated refrigerant.
Analyzer test failed,
disconnect test tank YF
(if present)
The station has detected that the refrigerant
is contaminated or is not R1234yf
Refer to the Refrigerant Identifier section of this
manual
Refrigerant identifier error
(if present)
The station has detected that the internal
refrigerant identifier is not working properly
Exit the current test and contact an authorized Bosch
service center for repair.
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