Troubleshooting
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12 Troubleshooting
For troubleshooting the system, please refer to the PI diagram of each system.
Troubleshooting should always be carried out by skilled personnel.
The water monitoring system is connected to hazardous electric voltages, which can
cause personal injury or mechanical damage if not handled correctly and in
accordance with normal safety regulations.
Flow alarm, but
operating pressure is
high, while backpressure
(measured with pump
OFF) is low
Blocked flow path
Air in the system
Clean strainer, open blocked valves,
check hoses are intact.
Check and adjust the flow regulating
valve.
Evacuate air by disconnecting the
relevant hoses.
Check system for blockages –
especially disassembly and clean the
non-return valve.
Pump failure
Pump not running
Check automatic fuse, remove end
cover to observe impeller rotating
Blocked valve
Attention: Moving
parts.
Pressure holding, pressure
reduction or relief valves.
Impeller and end cover
condition
Check the pressure holding, pressure
reduction or relief valves. Clean if
necessary.
Check impeller and end cover
condition. If the impeller is swollen
another impeller material must be