BWT PERMAQ Compact CRU, Installation And Operating Manual

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10

Defective PCB.

Replace PCB.

Float of the level switch is
stuck.

Push the level switch float carefully up/down
until it is at concentrate level.

Defective level switch.

Replace level switch.

External stop signal on the TP-
pump.

Check and rectify cause of the external stop
signal.
Fault 3:
TP-pump is
running but
no water is
getting to
the con-
sumer

Air in the TP-pump.

The TP-pump needs to be bled of air. Switch
power OFF, fill up the tank and turn switch
power back to ON. Let the pump run a while
with a large flow in order to get the remaining
air out of the pump case.

Low water level.

Disconnect the consumer. Let the tank become
completely filled and the TP-pump will start au-
tomatically.
Fault 4:
TP-pump
starts and
stops

If the piping connection is too
small there is a risk of outages
on the plant due to lacking wa-
ter pressure/amount etc.

Replace the outlet pipe (water for consump-
tion) with an outlet pipe with a larger dimen-
sion.

Non-return valve is
leaky/defective.

Replace the non-return valve.

The hydrophore is defective or
lacking air.

Replace the hydrophore and set the pre-
pressure at 2.7 bar.

The hydrophore capacity is too
small.

Contact BWT for technical advice.

Pressure switch set incorrectly.

Set the pressure switch at 4.0 bar (Stop) and
3.0 bar (Start).