DÖRR EcoPump AD, Operation Manual

Page: 25 / 36

Fault description Cause Remedy
Ä 12.7 “Operating and auxiliary mate-
rials”
Dry pump
Fill pump (use foot valve if required).
Viscosity too high
Use material with lower viscosity.
Material density too high
Use material with lower density.
Diaphragm is damaged. Foreign body in material
Install filter.
Chemical incompatibility
Replace material.
Thermal deformation
Replace material.
-
Replace the diaphragm.
Ä 9.3.3 “Dismantle material assembly.”
Ball is deformed. Chemical incompatibility
Replace material.
Thermal deformation
Replace material.
-
Replace ball.
Ä 9.3.2 “Dismantle inlet and outlet
manifold”
Pressure shocks
Use pulsation damper.
Faults
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