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Symptom
Possible error
codes
Check/Action Remedy
Water is not produced.
There is rattling
sound from the
motor.
Water is produced.
Normal vibrations
during operation or
ushing (when built-
in or in Domestic
installations.)
20
Low inlet pressure.
21
Loose driving belt.
Vibrating hoses or
something in contact
with rotating parts.
Damaged ball
bearings in the
motor.
Does the motor rotate •
properly or has it stopped
(vibrating/rattling)?
Noticeable sound during •
water production or during
ushing.
Is inlet pressure sufcient?•
Is the inlet pressure sensor •
working?
Check driving belt. •
Check internal parts. Make •
sure nothing is in contact
with the cooling fan for the
motor or the driving belt.
Does the sound appear from •
the motor?
Noticeable resistance or •
sound when the motor axis
is turned by hand?
The circuit board is broken and cannot make
the motor turn properly – change circuit board.
Decrease the sound by placing the product on
a thin rubber mat (few millimetres).
Measure the inlet pressure and adjust if
necessary.
Tighten or loosen belt depending on status.
Change motor.
TROUBLESHOOTING
a)
b)
c)
d)
a)
e)