Irregular Level Conditions - Kessel Aqualift F Installation Manual

Problems
6 Pumpstation suddenly runs
loud
7 Bad odour
Sharp smelling odour
8 Pumps are activating too
often or turn off without rea-
son
9 System does not stop run-
ning or displays errors on
control unit
Malfunction warnings
All errors / malfunctions are displayed with the digital display of the control unit. Multiple errors will be displayed simulta-
neously and can been seen by scrolling down on the display.

8.2 Irregular level conditions

Problems or failures with the level switches can often be de-
tected by the control unit and be displayed while in the Auto
mode. If the control unit detects an impossible level switch
situation (such as the "Pump 2 On" switch activating without
the "Pump 1 On" switch activating), the "Laufzeit / Niveau"
LED will begin to blink. This can be confirmed and cancelled
by pressing the "Alarm Reset" button if the problem has been
fixed or the wastewater level has changed and this "impos-
sible" level is no longer present. Problems with the „Alarm"
closure switch and a malfunctioning of the "Pump Off" float
switch cannot be detected. Irregular activating float switches
8. Störungen und Abhilfemaßnahmen
Reasons
Pump / impeller damaged from de-
bris / foreign objects
Debris in pump intake / impeller area
Pumping station not watertight (lea-
king)
Pumps not watertight
Motor too hot / overloaded
Protectors too hot
Incoming wastewater volume too
large
Non-return flap either damaged /
defective or not in proper position
Schaumbildung in der Anlage
Too much suds / foam entering
pumping system
Too much grease / oils / fats ente-
ring pumping system
27
Remedial actions / Solutions
Check pump / motor parts and replace if ne-
cessary
Remove and debris, check pump for damage /
wear and tear and replace if necessary
Check ventilation, inlet, outlet pressure pipe
and pumpstation cover for watertightness.
Check pumps and allow customer service to re-
pair or replace the pumps
Check motor and pump for ease of rotation.
Check for switching malfunctions (check motor
protection switch)
Too much wastewater volumes causing in-
crease start / stop of the pumps – check with
KESSEL Customer Service.
Check switching / activation errors
Check causes and correct
Check non-return valve (integrated in pump ou-
tlet pressure pipe) and clean / repair.
Reduce amounts of soaps / detergents ente-
ring wastewater stream
Clean entire system and check for grease / oil
/ fat build up
Check pressure sensor
normally means a damaged float switch or improperly
connected float switch cables in the control unit. Checking or
repairing this type of problem should be handled by a licen-
sed electrician.
Irregular air pressure readings are mostly likely caused by
an air pressure monitor error or improperly air pressure
sensor connection. Contact customer service to repair
this error.