ProMinent EXtronic EXBb Operating Instructions Manual page 37

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