Kessel 28701, Installation Manual, Page: 40 / 144

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6. Help during malfunctions
- Check power supply and
fuse / breaker
- Repair to be handled by
KESSEL Customer Service
Only
- Check pressure switch
(see Section 4.5) or repair
with KESSEL Customer
Service
- Clean ventilation pipe of
the pump
Clean pump(s) – (follow
instructions in Section 1.1)
- Clean pump(s),
Replace intake flange
- Replace impeller and or
cutting / macerating as-
sembly
- Clean ventilation pipe
- Clean outlet pressure pipe
- Clean inlet suction pipe
- Replace backwater flap
- Clean outlet pressure pipe/
check to make sure the
entire system is watertight
- No power to unit
- Power chord damaged
- Pressure switch defective
- Ventilation pipe blocked
Debris or solids has jammed
between the impeller and the
suction flange
- Suction basket damaged or
worn
- Impeller damaged or worn /
cutting assembly (macerator)
damaged or worn
- Ventilation pipe blocked
- Pressure outlet blocked
- Suction inlet blocked
- Backwater flap defective / not
watertight
- Pressure switched blocked or
damaged
Pump doesnʼt start
Impeller blocked
Reduced pumping
performance
Pump is running without
wastewater being present
Malfunciton Possible Cause Remedial actions