7 Fault finding and rectification
Personnel:
n
Manufacturer
n
Mechanic
n
Qualified electrician
n
Servicing personnel
n
Specialist
NOTICE!
Material damage by using incorrect tools!
Material damage may arise by using incorrect tools during assembly,
maintenance or troubleshooting. Only use the correct tools.
Fault description Cause Remedy
Green LED ON does not flash Power supply interrupted Restore power supply
Master switch on OFF Turn the master switch ON
Fuse F1 on the board is
defective
Usenew fuse 5 x 20 2AT
Collective fault signal and
continuous red light on LL1
Short-circuit or breaking of
the solenoid valve
container 1
Check connection, replace
solenoid valve if required
Collective fault signal and
continuous red light on LL2
Short circuit or breaking
of
the solenoid valve container 2
Check connection, replace
solenoid valve if required
After acknowledging the
collective fault signal
continuous red light on QUIT
Short circuit or breaking of
the lifter solenoid valve
Check connection, replace
solenoid valve if required
Lifting vessel is overflowing;
but compressed air valve
on
the injector is still open
Solenoid valve
jammedmechanically
Interrupt the compressed air
supply. Set the equipment to
OFF at the master switch.
Replace solenoid valve.
Overfill protection
floater seals
the suction opening
Unscrew the throttle screw
completely till the floater falls
off
Ä
Chapter 4.4 ‘Overfill
protection’ on page 21
Lifting vessel is overflowing,
empty signal is nonetheless
active
Level switch
cable broken Set the equipment to OFF at the
master switch. Replace level
switch.
Overfill protectionfloater seals
the suction opening
Unscrew the throttle screw
completely till the floater falls
off
Ä
Chapter 4.4 ‘Overfill
protection’ on page 21
Insufficient level in lifting vessel
and empty signal, although
container full.
Compressed air throttled too
strongly
Open throttle further
Suction time settoo short Increase suction time
Compressed air supply not
enough
Checkcompressed air supply
Fault finding and rectification
37 Rev. 1-06.2018
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