Lowara SV-B Instalación Funcionamiento Y Mantenimiento página 20

en - Translation of the original instructions
Cause
There is a ruptured membrane or no air pre-
charge in the pressure tank.
7.11 The pump vibrates and generates too
much noise
Cause Remedy
Pump cavitation Reduce the required flow rate by partially closing the
on-off valve downstream from the pump. If the prob-
lem persists check the operating conditions of the
pump (for example height difference, flow resistance,
liquid temperature).
The motor bearings Contact the Sales and Service Department.
are worn.
There are foreign Contact the Sales and Service Department.
objects inside the
pump.
For any other situation, refer to the Sales and Service Department.
7.12 There is no discharge from the automatic air
vent
Cause
Working pressure is above the limit. Find and remove the extra pressure
Connection pipe has scale and dirt
inside.
16
Remedy
See the relevant instruc-
tions in the pressure tank
manual.
Remedy
causes.
Remove the vent and clean the pipe.
e-SV - English