Faults
8
Faults
Fault description
Pump does not prime in
spite of full stroke motion
and bleeding.
Fluid is escaping from the
backplate.
Fault/operating indicator
does not illuminate.
Fault/operating indicator is
red.
Tightening torque
Data
Tightening torque for screws:
48
Cause
Minor crystalline deposits on
the ball seat due to the valves
drying out
Major crystalline deposits on
the ball seat due to the valves
drying out
The screws in the dosing head
are too loose
The diaphragm is not tight.
The wrong mains voltage or no
mains voltage is connected.
The fluid level in the storage
tank has reached "Liquid level
low".
The multifunctional switch is
positioned between 2 selection
options.
Electronics fault
Remedy
Take the suction hose out of the
storage tank and thoroughly flush
out the liquid end
Dismantle and clean the valves.
Tighten the screws in the dosing
head crosswise - see below for
the tightening torque.
Replace the diaphragm - refer to
"Repair".
Connect the pump correctly to the
specified mains voltage -
according to the specification on
the nameplate
Fill the storage tank.
Allow the multifunctional switch to
lock into selection option 1.
Return the pump.
Value Unit
4.5 ... 5.0 Nm