Speck pumpen BADU BNR 400, Operation Manual

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Faults/troubleshooting
01|2020 EN 27
7 Faults/troubleshooting
7.1 Overview
Fault: Device indicates “Water level okay” but it is not correct.
Possible cause Remedy
Conductive medium or
moisture on the cable.  Pull the green plug
carefully out of the plug
board in the device and
check whether the control
responds with the blue
and orange LED at the
two pins.
 Test the cable extension
with a dipole cable.
 Use the available 25 m
cable.
Fault: Solenoid valve or pump at the Lp/Np output does not
switch.
Possible cause Remedy
Overload protection has
tripped.  Replace the 4 A fuse. This
is next to the 315 mA
fuse. These must not be
confused.
Fault: Solenoid valve is not activated but still refills water.
Possible cause Remedy
Valve not working because the
channels in the valve are
blocked.  Remove and clean the
solenoid valve. A ball
valve is to be preferred for
hard or dirty water.
In case of external tripping
(contact) there are interfering
devices in the vicinity of the
cable of the connected external
contact.  Do not lay the cable with
power cables or use a
shielded cable for external
tripping.