Labconco WaterPr BT Systems 90151 Series - Manual (Page 70)

Troubleshooting
62
Problem Possible causes What to do
The last Product resistivity
value is not displayed when
you press the “-“ button in
FILLING TANK mode or in
PRE OPERATE mode. • A measurement was not made
during DISPENSING mode or during
recirculation.
• The value is out of measurement
range.
• Dispense or recirculate water
manually to start a Product resistivity
reading again.
• The Tank Outlet Valve is not open.
The system detects that there is
water in the tank. The system will not
resume FLUSH mode until the tank is
emptied of water.
• Open the Tank Outlet Valve to
drain the water from the tank.
• Check that the Tank Outlet Valve
and Tubing are directed downwards
into the drain.
• The Filter Pack cartridge lifetime is
exhausted.
• The Product resistivity is less than
the Resistivity Setpoint set in menu
option C02.
• Replace the Filter Pack cartridge.
See Section How to Replace the Filter
Pack Cartridge.
• The Filter Pack cartridge is not
installed correctly or not installed at
all.
• Reinstall the Filter Pack cartridge.
• If the red Pack Alarm is still
displayed, then contact your
technical support.
• The system may have been in
STANDBY mode for a while.
• The Product resistivity is below the
Resistivity Setpoint set in menu
option C02.
• Recirculate the water in the
system. See Section How to
recirculate water manually before
dispensing.
• Replace the Filter Pack cartridge.
See Section How to Replace the Filter
Pack Cartridge.