Grundfos LC 231 - Code 4 (too Many Motor Restarts); Code 9 (Power Phase Sequence Wrong); Code 12 (Service Needed); Code 22 (Moisture in Motor of Pump)

8.3 Code 4 (Too many motor restarts)
• Alarm code 4 is shown on the display.
• The alarm symbol on the display turns red and
the pump stops.
• Alarm code Too many motor restarts is
displayed in Grundfos GO Remote.
Cause The pump has been blocked or
partly blocked causing overload
in the motor.
Remedy • Remove the blockage from the
pump.
Related information
6.12 Setting the maximum number of restarts with
Grundfos GO Remote
8.4 Code 9 (Power phase sequence wrong)
• Alarm code 9 is shown on the display.
• The alarm symbol on the display turns red and
the pump stops.
• Alarm code Power phase sequence wrong is
displayed in Grundfos GO Remote.
Cause The power supply phase is set
incorrectly.
Remedy • Interchange two phases.
Related information
2.3.3 Connecting the pump supply and power
supply
8.5 Code 12 (Service needed)
• Warning code 12 is shown on the display if you
press the Up or Down button.
• The warning symbol on the display turns yellow
and the pump's operating mode is unchanged.
• Warning code Service needed is displayed in
Grundfos GO Remote.
Cause
The pump requires service
based on time to next service
countdown.
Remedy • Contact Grundfos or an
authorised service workshop.
• In order for the product to
determine the service time,
you must have enabled the
service countdown with
Grundfos GO
Remote: Settings > Service
8.6 Code 22 (Moisture in motor of pump)
• Alarm code 22 is shown on the display.
• The alarm symbol on the display turns red and
the pump stops.
• Alarm code Moisture in motor of pump is
displayed in Grundfos GO Remote.
Cause Moisture is detected in the motor
of the pump.
Remedy • Service is needed on the
pump. Contact Grundfos.
8.7 Code 25 (Wrong configuration)
• Alarm code 25 is shown on the display.
• The alarm symbol on the display turns red and
the pump stops.
• Alarm code Wrong configuration is displayed in
Grundfos GO Remote.
Cause The level control is not
configured correctly.
Remedy • Check and adjust the level
control configuration with
Grundfos GO Remote.
Cause The IO terminal is not configured
correctly.
Remedy • Select which IO terminal to
change in Grundfos GO
Remote and adjust the
configuration.
Related information
3.6 Configuring the IO terminals using Grundfos GO
Remote
8.8 Code 26 (Contactor shorted)
• Alarm code 26 is shown on the display.
• The alarm symbol on the display turns red but
the pump's operating mode is unchanged.
• Alarm code Contactor shorted is displayed in
Grundfos GO Remote.
Cause
The contactor melts due to
motor overload and the pump is
unable to stop.
Remedy • Replace the control unit.
8.9 Code 48 (Motor is overloaded)
• Alarm code 48 is shown on the display.
• The alarm symbol on the display turns red and
the pump stops.
• Alarm code Motor is overloaded is displayed in
Grundfos GO Remote.
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English (GB)