
23
23
Steadypres VSD
OVER TEMP MODULE
Module overheating due to overload
check the pump load
COM ERROR
No communication between control board
and power board
Check the integrity of the connection cable
and connections; the power board could be
damaged
LOW LEVEL
No level signal with level signal input on
Make sure there is water at suction or check
level signal operation
EXT OFF
Placing out of service by means of external
signal
Check the external signal
none
Pressure sensor fault
Check the display pressure with a reference
manometer, re-calibrate or substitute the
pressure sensor
PROBLEM
Pump always running even when not required
Message
Cause
Intervention
None
System leaks greater then 2 l/min
Identify the leaks and repair
None
Flow sensor fault or locked open
Inspect and check the flow sensor
PROBLEM
The pump stops too soon when requested
Message
Cause
Intervention
none
Flow rate sensor fault
Check the flow rate sensor
Message
Cause
Message
Cause
Intervention
none
Air inside suction manifold
Bleed the suction system
none
Pump blocked or damaged
Inspect the pump and eliminate the problem
Steadypres VSD
Steadypres VSD