Grundfos Selcoperm SES Series, Installation And Operating Instructions Manual

Page: 72 / 82

English (GB)
72
11. Fault finding
The position references in the table refer to the components overview and the PID. See figs. 2 and 5 .
If the result of a check requires change, repair or
adjustment of the system, call certified service
persons.
Fault Display text Possible cause Possible remedy (certified service persons)
High DC voltage
or
low DC current
Voltage cell line C1 max.
Voltage cell line C2 max.
Voltage cell line C3 max.
Current of cell line C1 min.
Current of cell line C2 min.
Current of cell line C3 min.
• Lack of brine in electrolysis
cell
• Check the settings of the brine dosing
station.
• Check the salinity of the electrolyte. See
section 9.3.4 Checking the salinity of the
electrolyte .
• Scale deposits on electrodes • Check the functioning of the softener.
Regenerate the softener, if necessary. See
separate manual.
• Perform acid cleaning, if necessary. See
section 9.5 Acid cleaning .
• Water flow too high • Check and adjust the water flow. See section
7.2.4 Checking and adjusting the soft water
flow and the salinity of the electrolyte
.
• Lack of salt in brine tank (C) • Check and refill, if necessary. See section
7.1.2 Brine tank .
• High resistance on DC cable
connection
• Clean and tighten the connection. Use
electrical contact grease.
• Input voltage low • Check the incoming voltage.
• Check the fuses.
• Leakage in casing of
electrolysis cell
• Replace gaskets. See section
9.4.3 Replacing the gaskets in the
electrolysis cells and in the NaClO solution
line
.
• Electrolyte sample valve
(V0.06) open
• Close the valve.
Low DC voltage
or
high DC current
Voltage cell line C1 min.
Voltage cell line C2 min.
Voltage cell line C3 min.
Current of cell line C1 max.
Current of cell line C2 max.
Current of cell line C3 max.
• Too much brine in the
electrolyte
• Check the settings of the brine dosing
station.
• Check the salinity of the electrolyte. See
section 9.3.4 Checking the salinity of the
electrolyte .
• Water flow too low • Check and adjust the inlet water pressure.
• Check and adjust the water flow. See section
7.2.4 Checking and adjusting the soft water
flow and the salinity of the electrolyte
.
High
temperature at
DC connection
of cells
Temperature TIAHL 1.01 max.
Temperature TIAHL 1.02 max.
Temperature TIAHL 1.03 max.
Temperature TIAHL 1.04 max.
Temperature TIAHL 2.01 max.
Temperature TIAHL 2.02 max.
Temperature TIAHL 2.03 max.
Temperature TIAHL 2.04 max.
Temperature TIAHL 3.01 max.
Temperature TIAHL 3.02 max.
Temperature TIAHL 3.03 max.
Temperature TIAHL 3.04 max.
• Loose DC connection of
electrolysis cells
• Retighten the DC connections. See section
9.4.2 Retightening the DC connections .
• Temperature sensor (1.01 -
3.04) damaged. Observe
display text.
• Replace the sensor.
Temperature of
NaClO solution
too high
Temperature TIAHL 0.03 max.
• Mains water temperature too
high
• Check and rectify.
• Ambient temperature too high • Reduce the ambient temperature. See
section 5.1 Selcoperm Electrolysis System
(SES) .
• Temperature sensor (0.03)
damaged
• Replace the sensor.
Temperature of
soft water too
low
Temperature TIAHL 1.11 min.
• Failure of heater or cooler • Check and rectify. See separate manuals.
• Cell inlet temperature sensor
(1.11) damaged
• Replace the sensor.
Temperature of
soft water too
high
Temperature TIAHL 1.11 max.
• Failure of heater or cooler • Check and rectify. See separate manuals.
• Cell inlet temperature sensor
(1.11) damaged
• Replace the sensor.