Replacing The Cim Module; Fault Finding The Product; Overview Of Alarm And Warning Codes; Code 2 (Power Phase Missing) - Grundfos LC 231 Manual Del Usuario

7.3 Replacing the CIM module

WARNING
Electric shock
Death or serious personal injury
‐
Switch off the power supply before
making any electrical connections.
‐
Make sure that the power supply
cannot be switched on accidentally.
1. Switch off the power supply to the product and
other components with external supply.
2. Write down the terminal connection of each wire
to ensure correct re-connection.
3. Disconnect all wires connected to the CIM
module.
4. Remove the screws that holds the module.
5. Remove the module from the control unit.
6. Fit the new module.
7. Connect all wires.

8. Fault finding the product

WARNING
Electric shock
Death or serious personal injury
‐
Switch off the power supply before
you start any work on the product.
‐
Make sure that the power supply
cannot be switched on accidentally.
Fault finding and fault correction must be carried out
by qualified persons.

8.1 Overview of alarm and warning codes

Code number Description
The power phase is
Code 2
missing.
Code 4 Too many motor restarts.
The power-phase
Code 9
sequence is wrong.
Code 12 Service is needed.
Moisture in motor of
Code 22
pump.
Code 25 Wrong configuration.
Code 26 Contactor is shorted.
Code 48 The motor is overloaded.
Code number Description
Code 51 The pump is blocked.
Missing water in the
Code 57
application.
The winding temperature
Code 69
is too high.
Code 72 Internal fault.
Code 76 Internal fault.
The memory-storage
Code 84
media is faulty.
Code 85 Internal fault.
Code 117 The door is opened.
Communication error
Code 159
CIMxxx.
Code 163 Internal fault.
Code 165 Signal fault.
Code 191 High water level.
Level-switch
Code 205
inconsistency.
Code 220 Contactor wear out.
Code 229 Water on the floor.

8.2 Code 2 (Power phase missing)

• Alarm code 2 is shown on the display.
• The alarm symbol on the display turns red and
the pump stops.
• Alarm code Power phase missing is displayed
in Grundfos GO Remote.
Cause One of the power supply phases
is not connected.
Remedy • Connect the phase.
Cause The fuse is blown somewhere on
the incoming power line.
Remedy • Replace the fuse.
Related information
2.3.3 Connecting the pump supply and power
supply
23