9 Operating faults – Trouble shooting
work, green LED not showing
mains power cable damaged
check connections acc. clamp plan
despite bleeding and max.
deposits, adhesions or drying-out of
the valves
rinse the metering head through the
suction tube, if necessary remove
and clean or replace the valves
Metering head is leaking,
medium is escaping from
Metering head is loose
Tighten metering head screw
diagonally (see chapter 8.2)
work, although motor is
Metering volume setting too low Increase stroke volume setting
Metering pump is not running,
and motor is not working
despite of mains connection
Motor turned off by winding
protection
Motor turns on automatically after
cooling
Motor overload caused by too high
back-pressure
Check metering line
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