Grundfos LC 231 - Code 205 (Level Switch Inconsistency); Code 220 (Contactor Wear Out); Code 229 (Water on Floor)

Related information
3.6 Configuring the IO terminals using Grundfos GO
Remote
8.22 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 IO terminals using Grundfos GO
Remote
8.23 Code 220 (Contactor wear out)
• Warning code 220 is shown on the display if you
press the Up or Down button.
• Alarm code 220 is shown on the display.
• The alarm symbol on the display turns red and
the pump stops.
• The warning symbol on the display turns yellow
and the pump's operating mode is unchanged.
• Alarm code or warning code Contactor wear
out is displayed in Grundfos GO Remote.
Cause
The contactor has reached its
maximum number of operating
cycles and is worn out.
Alarm: The contactor is worn out
and the pump cannot start.
Remedy • Replace LC 231. Contact
Grundfos.
Cause The contactor is approaching its
maximum number of operating
cycles and must be replaced.
Warning: The contactor is close to
being worn out and the pump will
be unable to start.
Remedy • Order a new LC 231 to avoid
downtime. Contact Grundfos.
Related information
6.15.4 Setting the motor protection with Grundfos
GO Remote
8.24 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.
9. Technical data
Voltage
• 1 x 110-240 V +/-10%, PE
• 3 x 200-460 V +/-10%, PE.
Supported power supply lines:
• TN-S earthing system
• TN-C earthing system
• TN-C-S earthing system.
Frequency
50/60 Hz.
Maximum number of pump starts and stops per
hour
250.
Maximum starting current
IEC: 78 A.
UL: 68 A.
Operating temperature and current
Model
Maximum current and
temperature
combination
IEC: 99369644 LC 231
1x 1-12 DOL PI
12 A and 45 °C (113 °F)
UL: 99369651 LC 231
1x 1-9.6 DOL PI
9.6 A and 45 °C (113 °F)
Storage temperature
Min. storage temperature
-30 °C (-22 °F)
Max. storage temperature 60 °C (140 °F)
Ambient temperature
Minimum
-20 °C (-4 °F)
Maximum 45 °C (113 °F)
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