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6
Maintenance
Setting maintenance date
The maintenance date is set via Menu 2, Item 2.4. Follow the screen dialogue (for details of operation, seesee "Fig. X" ).
Self-diagnosis system (SDS)
The self-diagnosis system checks the described system functions automatically (interval adjustable). These settings are
made via Menu 3.1.9 (see "230V menu texts", page 35). Test: Pump 1, Pump 2 (Duo), battery.
If a fault occurs, a plain text message appears on the display and the alarm LED lights up.
Calibrate pressure sensor
A normal ageing process can cause deviation of the level at the pressure sensor. The pressure sensor can be calibrated
under menu item 2.7. and takes place automatically.
Please note that the calibration should be carried out at a room temperature of 10°C to 30°C.
Annual calibration is recommended.
Troubleshooting
Display text
Battery error
Maintenance due (flashes)
Undercurrent 1 or 2
Overcurrent 1 or 2
Relay error 1 or 2
Power outage
Level error
Relay cycles 1 or 2
Max. run time 1 or 2
Max. run occur 1 or 2
016-328
Possible cause
Battery is missing, is faulty or the remain-
ing voltage is too small
- The maintenance date has been
reached
- Minimum power consumption of pump 1
or 2 not reached
- Pump is defective
Maximum power consumption of the
pump exceeded, possible impeller block-
age
Switching relay does not switch off
- Power supply has failed
- Mains supply cable interrupted
Incorrect layout or wiring of the sensors
(float switch, pressure switch, level probe
or tightness of the pressure system); sen-
sor is defective
Maximum operating cycles exceeded
Pump is running too long per pumping
operation
Pump running too frequently within a
short time
Installation and operating instructions
Remedial measure
Check the battery connections, replace
battery if necessary
- Carry out maintenance
Check cable, replace if necessary
Check pump, replace if necessary
Clean the pump and check the impeller
for smooth running, replace if necessary
Disconnect the control unit from the
mains, replace the control unit
- general power outage
- Check mains supply cable
Functional check, troubleshooting
Can be acknowledged. Contact customer
service. Fault appears after a further
1000 operating cycles
Check the system design; if necessary,
inform the customer service.
Check the system design; if necessary,
inform the customer service.
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