Lutz BE10 - Other Faults

2.2 Other faults
Operating mode Fault Cause Remedy
General No liquid registered • Air in the piping
system/dry running
• Prevent air pockets in
connecting lines, use a solid
hose system
• Pump is not
operating
• Check pump
• Line strainer blocked • Clean strainer
• Time required to
lltheconnecting
lines exceeds the set
monitoring time
• Increase monitoring time
• Hose line kinked • Check hose line
• Solenoid valve
damaged
• Check solenoid valve
• The connection
between the modules
is interrupted
• Check bus line
• Foreign matter in the
basicowmeter
• Cleanbasicowmeter
• Basicowmeter
damaged
• Checkbasicowmeter
• Fuse in relay module
defective
• Check fuses
• Magnet or sensor
inbasicowmeter
damaged
• Checkbasicowmeter
Measured quantity
dierssignicantly
from the actual
quantity
• Correction factor does
not match operating
conditions
• Calibrateowmeter
• Fluid is too viscous • Calibrateowmeter
• Leaks in hose system • Install check valve if necessary
• Bleed air from system
• Radio interference on
the data line
• Route the data line separate
from other lines
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0698-651 Operating unit - 04/2021
en