•
The alarm symbol on the display turns red and the pump
stops.
•
Alarm code Signal fault is displayed in Grundfos GO Remote.
Cause
The signal from the sensor is out of the configured range.
Remedy
•
Go to Settings > Level control in Grundfos GO Remote and
ensure that the configured range corresponds to the physical
application type.
•
Change the sensor, if needed.
8.15 Code 191 (High water level)
•
Alarm code 191 is shown on the display.
•
The alarm symbol on the display turns red, but the pump's
operating mode is unchanged.
•
Alarm code High water level is displayed in Grundfos GO
Remote.
Cause
The defined start level did not start the pump.
Remedy
•
Check and configure the sensor for start level.
Cause
The pump is not big enough to remove the water.
Remedy
•
Contact Grundfos or an authorized service workshop.
Cause
The level sensor is defective and not reacting on level changes.
Remedy
•
Check the functionality of the level sensor.
Related information
3.6 Configuring the input and output terminals using Grundfos GO
Remote
8.16 Code 205 (Level switch inconsistency)
•
Alarm code 205 is shown on the display.
•
The alarm symbol on the display turns red and the pump
stops.
•
Alarm code Level switch inconsistency is displayed in
Grundfos GO Remote.
Cause
A float switch could be defective or stuck.
Remedy
•
Check the functionality of each float switch.
Related information
3.6 Configuring the input and output terminals using Grundfos GO
Remote
8.17 Code 225 (Communication error pump module)
•
Alarm code 225 is shown on the display.
•
The alarm symbol on the display turns red and the pump
stops.
•
Alarm code Communication fault, pump module is displayed
in Grundfos GO Remote.
•
The product is unable to communicate with the IO module.
Cause
The connection to GENIbus is missing.
Remedy
•
Check the GENIbus connection cable between CU 24X and
IO 242.
Cause
The pump module is defective.
Remedy
•
Contact Grundfos.
8.18 Code 226 (Communication error IO module)
•
Alarm code 226 is shown on the display.
•
The alarm symbol on the display turns red and the pump
stops.
•
Alarm code Communication fault, I/O module is displayed in
Grundfos GO Remote.
•
The product is unable to communicate with the IO module.
Cause
The connection to GENIbus is missing.
Remedy
•
Check the GENIbus connection cable between CU 24X and
IO 241.
Cause
The IO module is defective.
Remedy
•
Contact Grundfos.
8.19 Code 229 (Water on floor)
•
Warning code 229 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 Water on floor is displayed in Grundfos GO
Remote.
Cause
The sensor detects water on the floor.
Remedy
•
Check for water leakage.
25