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d) description of errors
Display at fault indication:
The error will be displayed in format "Ex" with "x" as error
code 0-9. The error codes blinks once every 0.5 seconds.
Adjustements can not be made while error status is shown.
error code cause
E1
Excess
temperature
E2
Power supply
voltage
E3
Blocking
Dry running
Motor or
electronic error
E4
Electronic error
dry
Dry running
error
cause
Pump does
Rotor/shaft is blocked
not run
Noise
Air in system
(> 43 dB (A))
Air in pump
Too much rate of flow
Cavitation due to less
supply pressure
Foreign material in pump • Clean housing.
description
Electronic component will not be
cooled enough
Power supply on the network side is too
high or too less
Impeller/shaft does not rotate
Air in pump
Motor or electronics defect
Electronics defect
Switches off after 1 minute, vent pump,
switch to zero-potential, restart
correction of defects
• Switch pump zero-potential
• Remove air vent screw.
• Turn shaft with set screw driver (4mm) clockwise.
• Screw in air vent screw.
• Switch on pump.
• Vent system
• Vent pump
• Reduce speed of pump
• Check operating pressure of system.
• Increase critical value of system analogous..
www.halm-pumps.de
correction of defects
Check operating condition
Adapt power supply voltage
Unscrew air vent screw and un-
block or free shaft manually
Refill medium to be pumped, vent
via air vent screw
Replace pump
Replace pump
Refill medium to be pumped, vent
via air vent screw
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