General Failures - Kessel aqualift f Installation, Operating And Maintenance Instructions

8. Warnings, Errors and Troubleshooting

8.4 General failures

Failure
1 Pump does not start
2 Pump does not start, alarm
level is reached / and dis-
played on control unit
3 Pump runs loud or rough
4 Wastewater is not pumped
out, fixtures connected to
lifting station are backing-
up
Control unit not plugged in.
Cause
Over current or thermal switch has
activated due to motor overheating
impeller blocked / jammed
no power
not power to control unit,
fluctuating power to control unit
Level sensor not airtight of PE air
hose not connected
Lifting station is receiving too much
wastewater.
Pump performance not sufficient
Motor rotating in wrong direction
Pump damaged and not performing
properly
Control unit not plugged in
No power being supplied to control
unit
Level sensor damaged
Inlet to lifting station blocked
Gate valve on inlet side of pump shut
or not opening properly
Wastewater temperature over exten-
ded period of time (15 minutes) too
high, suction capability of system li-
mited
59
Plug in control unit.
Solution
Remove motor; remove blockage in impeller
or pump housing area (caution – pump hou-
sing may be hot)
Inspection/maintenance from customer service
Check fusing and electrical supply
Attempt to re-initialise system (remove plug
and after 10 second plug back in).
Check all screws to make sure they are secure
Check to see if unexpected high volumes of
wastewater are entering the lifting station.
Temporarily do not use drainage fixtures
connected to lifting station.
Remove object / blockage in impeller or
pump housing
Remove object / blockage in the pressure
outlet or pressure pipe
Pumps are worn out – replace pumps
Lifting station not proper for specific
application – contact KESSEL Customer
Service
Check motor rotation, if rotating in wrong di-
rection check phases
Check motor, any damaged parts should be
replaced by customer service
Plug in control unit
Check fusing. Check power supply.
Check level sensor for proper function or
blockage
Clean inlet pipes
Open inlet gate valve
Lower incoming wastewater temperature