Lutz BE10 - Page 71

Operating mode Fault report Cause Remedy
Flow monitoring
On
Flow rate too low • Pump damaged • Check pump
• Line strainer blocked • Clean strainer
• Hose line kinked • Check hose line
• Solenoid valve
damaged
• Check solenoid valve
Flow monitoring
On
Flow rate too high • Flow control valve
misaligned
• Adjusttheowcontrolvalve
Volume preset No pulses • 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
• 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
Volume preset /
Leakage alarm
On
Leakage in system • Pipe or connections
not properly sealed
• Check the pipe and
connections
• Solenoid valve does
not close properly
• Check solenoid valve
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0698-651 Operating unit - 04/2021
en