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
24
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.