22
Steam rising from the quick connectors area.
From time to time, you can hear a humming noise co-
ming from the machine, the vacuum cleaner refuses to
work or switches on all by itself every now and then,
or there is a problem with wet steam or detergent pre-
sence.
Pin 1 = free
Pin 2 = free
Pin 3 = free
Pin 4 + GND = vacuum cleaner ON
Pin 5 + GND = steam ON
Pin 6 + GND = detergent ON
Do not extend the washing hose, and do not pull the machine by the hose, as this may damage the control connec-
tor/ plug or control cables inside the washing hose.
Replace control switches or cables inside the washing hose pipe. If the washing hose is old / worn out, replace it.
If any part of the vacuum cleaner hose is perforated, the hose cannot be used anymore: it must be replaced with
a new one.
Replace silicon O-rings in quick connectors. When replaced, slightly moisten O-ring and quick connector areas with
silicon spray grease.
Cleaning hose connector improperly installed in safety
quick connector.
One or several washing gun switches are damaged,
or silicon electrical cables in the washing hose are da-
maged (broken, short-circuited, etc.). In the expected
steam / detergent / vacuum cleaner presence mode, di-
sconnect the washing hose control cable, and perform a
test at the control socket at the rear panel of the machi-
ne by connecting pins as per the diagram below. If the
pin connecting test is successful, it means that damage
has occurred inside the washing hose.
View of the electrical connection socket for
the washing hose
4 problem
5 problem
Diagnosis
Diagnosis
Prevention
Solution
Solution
Start the machine 2-3 times by filling the boiler, and
heating and draining it through the individual washing
hose. The machine is descaled now.
