Waeco AirCon Service Center BMW 2500G Operating Manual page 129

BMW 2500G
Problem
The display shows
"Error 04"
The display shows
"Error 09"
The display shows
"Error 10"
The display shows
"Error 12"
The display shows
"Error 52"
The display shows
"Error 60"
The display shows
"Error 61"
EN
Cause
It is not possible to lower the
pressure when flushing takes
place.
During the flushing process,
no pressure could be ascer-
tained at the low pressure
connection of the air condi-
tioning service unit.
During the software test, the
compressor failed to reduce
the internal pressure suffi-
ciently.
It was not possible to remove
any refrigerant from the inter-
nal tank during the software
test.
No USB stick was found/rec-
ognised
During the hybrid service
(flushing the service hoses
with hybrid oil), a vacuum
could not be achieved.
Pressure increase during the
hybrid service .
Troubleshooting
Remedy
Check air conditioner and
connections for leaks, con-
strictions and ice build-up.
Check pressure transducer
calibration.
Connect low pressure hose
to the flush container and
open valve.
Residual pressure on the
pressure gauges?
Check pressure transducer
calibration.
Check internal bottle pres-
sure.
Check the compressor and
the corresponding solenoid
valves.
Check pressure transducer
calibration.
Check whether the tank
valve on the internal tank is
open.
Check the RE valve.
Is the ambient temperature
below 10 °C?
Insert the USB stick.
Make sure that USB stick has
been formatted with the
FAT32 file system.
Are the service hoses con-
nected to the hybrid flush
container?
Is the hybrid flush container
fitted the right way round?
Check the connections for
leaks.
Are the service hoses con-
nected to the hybrid flush
container?
Is the hybrid flush container
fitted the right way round?
Are the service couplings
open?
129