Servicing; Troubleshooting - Hitachi RP 350YDH Instruction Manual

9

Servicing

9.1 General Instructions
Before performing any maintenance, always
switch off the appliance and remove the mains
plug.
Clean the appliance (see section 8).
For maintenance by the user, the vacuum cleaner
must be taken apart, cleaned and maintained, to the
extent possible, without endangering maintenance
staff or other people.
Preventive Measures
Appropriate preventive measures include: cleaning
the appliance before disassembly; providing local
filtered forced ventilation where the vacuum cleaner
is disassembled; cleaning of the maintenance area
and providing suitable personal protective clothing
and equipment.
9.2 Reduction in suction power
If the suction power decreases, carry out the
following steps:
1. Clean the filter cassettes by activating the elec-
tromagnetic vibrator (set switch (2) to the "IR"
position).
2. Empty the container or replace the paper filter
bag (17)/fleece filter bag (18) or PE filter bag (5).
3. Replace the filter cartridges (16)
9.3 Renew the filter cartridges (16)
Shake the filter cassettes (16) once again before
replacing the filters, by switching on the
electromagnetic vibrator (set switch (2) to the "IR"
position).
Use a coin or a similar object to turn the locking
knob (14) on the locking bar (13) counter-clockwise
through 90° and push the bar (13) to the rear. Swing
up the hood and pull up the filter cartridges (16) to
remove them. Seal the removed filter cassettes
immediately in a dust-tight plastic bag and dispose
of them in accordance with regulations. Insert new
filter cartridges, ensuring they are correctly and
securely in place.
9.4 Motor protection filter
Regularly check the motor protection filter. If the
motor protection filter (15) is contaminated, this
indicates that the filter cassettes (16) may be
defective:
- Replace the filter cartridges (16)
- Replace the motor protection filter (15), or rinse it
under running water, dry it and then replace.
9.5 Water sensor
Clean the water sensor regularly
and check it for signs of damage.
9.6 Any other maintenance work
Any other maintenance work is to be carried out by
the Hitachi Authorized service center.

10 Troubleshooting

If the volume flow control display (3) lights up, this
indicates that the paper filter bag/fleece filter bag
must be emptied.
Reduction in suction power:
See the instructions in the section on Cleaning.
• Filter cassettes (16) soiled? Clean the cassettes.
• Paper filter bag (17)/fleece filter bag (18) full?
Replace the filter bag.
• PE filter bag (5) full? Replace the filter bag.
• Container (10) full? Empty the container.
• Motor protection filter (15) clogged? - See
section 9.
• Nozzle, tubes or hose blocked? Clean.
Appliance will not start:
• Is the plug in the plug socket?
• No power from mains?
• Mains lead OK?
• Appliance hood correctly closed?
• Has the water sensor cut off? - Empty the
container; then switch on and off again.
• Switch (2) in "AR" position? - Set to "I" or "IR".
See section 6.1.
• The vacuum cleaner is not switched on or off by
means of a power tool, even though switch (2) is
set to the "AR" position. - Connect the power tool
to the plug socket (4).
Dust in the container when paper filter bag/
fleece filter bag is fitted:
• The position of the rotary slide is incorrect. See
section 5.1.
PE filter bag is sucked against the filter
cassettes (16) :
• The position of the rotary slide is incorrect. See
section 5.2.
PE filter bag is sucked against the filter
cassettes (16) :
• The position of the rotary slide is incorrect. See
section 5.2.
Do not interfere with the appliance.
Contact an authorized workshop or
Hitachi's after-sales service department (see
section on 12 Repairs).
ENGLISH
ENG
de
fr
nl
it
es
pt
sv
fi
no
da
pl
el
hu
ru
11