aqua technix AQUA AQ 280 Installation page 54

Defects
Problem
Too much
quartz sand is
flushed out of
the filter into
the sewer
during
backwash
Pump does not
start by itself
The water is
not clear
54 EN VG 766.2050.052
Possible cause
Too much sand in the
filter (Quantities
page 46)
Power line not
connected to mains
Fuses defective
Motor defective
Pump is blocked
External overload switch
has tripped
Overload at filter due to
insufficient disinfection
Lumpy quartz sand
Filter is dimensioned too
small
Filter time too short
Backwash intervals too
short
Valve not in the "Filter"
position
Solution

Reduce quantity,
volume flow

Filling level turns on
automatically during
backwash (catch lost
sand)

Turn power on

Replace

Have winding and
condensator
(alternating current)
checked by qualified
professional

Turn the motor shaft
using a screwdriver
in the slot at the end
of the shaft

Re-set

Check the pH
concentration of the
disinfectant

Renew

Change

Extend

Backwash more
often

Change
08/2015