Pumps; General Problems - Kessel Aqualift F Installation Manual

The following problems and solutions should only be checked and handled by a licensed professional .

8.1 General problems

Problems
1 Pump(s) do not start
2 Pump(s) run but alarm level
has is displayed
3 Digital display shows rota-
tional error
4 Wastewater is not being
pumped out, connected fix-
tures not draining
5 Pump(s) run rough or loud
8. Problems and Remedial Actions
Reasons
Motor protecting switch has ac-
tivated, impeller is blocked
Motor difficult to turn
1 or 2 phases not receiving Power
Irregular power supply (power
surges) to control unit
Phases connected improperly
Too much wastewater entering
system
Pump performance not satisfac-
tory.
Non-return stuck in open position
Improper phase connection
No power to control unit
Power to control unit not activated
Level sensors not functioning pro-
perly
Wastewater inlet to pumping sy-
stem blocked
Possibly gate closure valve before
inlet not fully opened
Wastewater temperature over lon-
ger periods of time (15 minutes)
too high
Pumps or pump impellers damaged
Remedial actions / Solutions
Remove pumps, inspect for blockage at impel-
ler or intake area
Service / repair the unit with customer service
Check fuses and electrical supply cables
Replace batteries in control unit
Swap two phases of power supply
2 Phasen der Zuleitung tauschen
Check to see if unusually large amount of wa-
stewater are entering the system, if required re-
duce wastewater flow entering system.
• Remove and debris / blockage from impeller
/ pump intake area
• Remove and debris / blockage from pressure
outlet pipe
• Pumps / impellers are worn, replace
• Pump has been improperly specified and is
not capable of handling on-site requirements
Set non-return flap in proper (vertical) position
Check phase connections to control unit, if ro-
tating in improper direction, swap two phase
connections in control unit
Turn on mains power switch on control unit
Check fuses, Check power supply
Check air pressure sensor for debris / blocka-
ge and check for proper operation
Clean main wastewater inlet pipe to pumpsta-
tion
If gate closure valve installed prior to inlet,
make sure it is in the fully open position
Reduce temperature of wastewater entering
system
Check pumps / motors, damage parts to be re-
placed by customer service department
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