Fault
8.
Water from shower or
another appliance
connected to the lower
inlets drains off slowly.
Backflow from the
lifting station.
10. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
10
Cause
a)
Non-return flap in inlet stuck,
does not open or does not close
sufficiently.
b)
Hydraulics or grinder blocked.
c)
The start level has changed.
d)
Inlet pipe diameter is too small.
Subject to alterations.
Remedy
Check the non-return flap.
Check and clean the hydraulics and
grinder.
Check and clean the pressure switch
pipe.
Use a pipe with a larger diameter.