Code 191 (High Water Level); Code 205 (Level Switch Inconsistency); Code 225 (Communication Error Pump Module); Code 226 (Communication Error Io Module) - Grundfos LC 241 Manual Del Usuario

• 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.
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