Fault description Cause Remedy Personnel
Fluid escapes from the
backplate.
The screws in the dosing
head are too loose.
Tighten screws in dosing
head crosswise - refer to
"Repair" for tightening tor‐
ques.
Instructed per‐
sonnel
The metering diaphragm is
not leak-tight.
Replace the metering dia‐
phragm - refer to "Repair".
Technical per‐
sonnel
Yellow LED display (oper‐
ating indicator) does not
light up.
The wrong mains voltage
or no mains voltage is
connected.
Connect the pump correctly
to the specified mains voltage
- according to the specifica‐
tion on the nameplate.
Electrician
Troubleshooting
37
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