Operating instructions AQUAMAX
®
PRO G
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0272 / Status: 24 February 2021 / Page 25 from 36
Over current (A1/A2/F1/F2/C1/C2/SL/UV/P)
Possible causes
Troubleshooting
Current limits are not correctly set.
Adjust the current limits.
The corresponding unit is blocked or not
running smoothly.
Check the current consumption. Take out the
defective device and remove the blockage.
ATTENTION! With the exceeding of the maximum current consumption the unit is
locked and can only be put into operation error reset.
Rotating parts: Ensure that the system is disconnected from power supply before
removing parts!
Float switch SBR / buffer
Logic error. The upper float switch closes and the lower float switch is still open (please note the
float indication on the display)
Possible causes
Troubleshooting
Float switch defective.
Call service.
Float switch is stuck.
Detect and eliminate the cause of the
sticking.
A screw in the cable distribution box or on the
terminal strip of the control unit is not properly
tightened, so that the connection is broken.
.
Call service or electrician to check the contact
points and the wiring.
The cable connection is broken.
See above
CW timeout
The clear water evacuation takes longer than the maximum time setting allows without lower float
in the SBR [SW1] is switching OFF (please note the float indication on the display).
Possible causes
Troubleshooting
Float switch [SW1] is defective.
Call service.
Float switch [SW1] is stuck.
Detect and eliminate the cause of the
sticking.
A terminal in the cable distribution box or on
the terminal strip of the control unit is not
properly tightened, so that the connection is
interrupted.
Call service or electrician to check the contact
points and the wiring.
The cable connection is broken.
See above
Insufficient performance of the clear water
pump.
Check the capacity and the current
consumption (manual mode). Clean the pump
or change the device.
Leakage in the clear water pressure line /
pressure line not properly connected to the
outlet of the plant.
Change pressure line / fasten properly.
Backing-up
Eliminate the cause of back-up.
Exceptionally high sewage / infiltration water
inflow.
Eliminate the cause for high sewage / seal
the leakage of infiltration water.
Incorrect value for the max. pumping time.
Change the setting.