Notes For Electrical Control Unit; General Comments - Kessel aqualift f Installation, Operating And Maintenance Instructions

Note:
The complete flap housing can be removed for cleaning
and maintenance purposes (see Fig. 4) by loosening the
screw connections on the lower and upper flange of the
flap housing. Prior to this work the outlet pressure pipe
must sealed closed and any waster drained from the sy-
stem.
8. Warnings, Errors and Troubleshooting
The following checks and repairs should only be handled by
an authorized service company. If there is any doubt, contact
the manufacturer or the service company which installed the
system.

8.1 General Comments

Warnings – warnings serve to inform the user but do not
cause the system to stop operating meaning that the system
remains in normal operational mode.
Errors – Errors cause the system to stop operating and re-
quire corrective action by a qualified service provider. This
means the system will not return to operation until repaired.
Errors are higher ranked that Warnings. In the case that a war-
ning exists and following this an error occurs, the error signal
is displayed. A general troubleshooting guide for handling
warnings and errors can be seen in the Display of Warnings
and Errors section.
Turning off audible alarms
Warnings and errors are signalled by an audible alarm from
the control unit. This audible alarm can be turned off by pres-
sing the ALARM button on the control unit. The LED display
warning or error will remain on the control unit.
CAUTION:
During a relay failure the audible alarm will remain on
and cannot be turned off by pressing the ALARM but-
ton. If this occurs the lifting station will not function.
In order to silence the alarm, the lifting station must
be disconnected from the power source.
Re-initialising a warning
Pre-requisites for re-initialising a warning are:
- The audible alarm has been turned off
- The cause of the alarm no longer exists
By pressing and keeping pressed the ALARM button, a war-
ning alarm will be cancelled.
7. Inspection and maintenance

7.3 Notes for electrical control unit

After any work has been done on the control unit, make sure
that the control unit cover is closed and properly secured with
the four screws.
Repairs may only be carried out by the manufacturer or his
authorised service partner.
The system is now back in normal operation mode.
Re-initialising an error
Pre-requisites for re-initialising an error are:
The audible alarm has been turned off
The cause of the error has been repaired
By pressing and keeping pressed the ALARM button, an
error alarm will be cancelled. This will cause all 4 LEDs to
turn off. The LED error message will be displayed once more
for approx 5 seconds. The process starts again new and the
system returns to normal operation mode.
CAUTION:
• A thermal warning re-initialises itself automatically
after the motor temperatures has cooled.
• A relay failure can not be re-initialised. If this occurs
the lifting station will not function. In order to silen-
ce the alarm, the lifting station must be disconnec-
ted from the power source.
Display of last service / maintenance or display of last error
The last warning or error message is saved by the control
unit memory and can be re-called (multiple times) in order to
aide in diagnosing the problem.
Pre-requisites for this are:
- The warning or error has been cleared
- The wastewater level is below the pump ON and alarm ON
level meaning that only the green power LED is lit.
Pressing the ALARM button for more than 5 seconds will turn
off the 4 LEDS on the control unit. The warning or error will
be displayed again by the LEDs for approximately 5 se-
conds. The system now returns to normal operation mode
(see table 8.2)
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