Malfunction Warnings; Irregular Level Conditions; Problems And Solutions - Kessel Aqualift F Anleitung Für Einbau, Bedienung Und Wartung

Problem
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 si-
multaneously and can been seen by scrolling down on the display.

8.1.2 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 with-
out the "Pump 1 On" switch activating), the "Laufzeit / Ni-
veau" LED will begin to blink. This can be confirmed and can-
celled by pressing the "Alarm" button if the problem has
been fixed or the wastewater level has changed and this "im-
possible" level is no longer present. Problems with the
„Alarm" closure switch and a malfunctioning of the "Pump
Off" float switch cannot be detected.

8. Problems and Solutions

Reason
• Pump / impeller damaged from
debris / foreign objects
• Debris in pump intake / impeller
area
• Pumping station not watertight
(leaking)
• Pumps not watertight
• Motor too hot / overloaded
• Protector too hot due to switching
malfunction
• Incoming wastewater volume too
large
• Non-return flap either damaged /
defective or not in proper position
• Too much suds / foam entering
pumping system
• Too much grease / oils / fats ente-
ring pumping system
Solution
• 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
repair 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
outlet 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
Irregular activating float switches normally means a dama-
ged float switch or improperly connected float switch cables
in the control unit. Checking or repairing this type of problem
should be handled by a licensed electrician.
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