39
English
- Clean the wash tank filters.
Weekly
- Check the rotary movement of the spray arms.
- Open the panels and rinse the inside.
- Check the nozzles and clean them.
1
3
2
4
Fig. 24.1
Filter unit: 1) Central filter. - 2) Mesh filter. - 3) Tank
bottom filter. - 4) Salt tank cap.
a
WARNING. Do not spray the machine or near
it with water jets, or with pressure devices.
Proceed as follows to clean the filters in the wash tank:
- Open the door and remove the load basket.
d
Warning: Very hot surfaces.
Warning: Very
hot surfaces.
b
Risk of injury: Be careful with sharp and
pointed objects, which are withheld in the
baskets.
- Remove the central filter (1 Fig. 22.1).
- Remove the mesh filter (2 Fig. 22.1).
- Remove the tank bottom filter (3 Fig. 22.1).
- Carefully clean the filters and remove the residual
substances.
- Remove the deposits from the drain and clean the
drain.
At the end of the cleaning operations, refit the filters
in succession.
Clean the spray arms as follows:
- Open the door and remove the load supports.
d
Warning: Very hot surfaces.
Warning: Very
hot surfaces
- Using the tools provided, loosen and remove both
spray arms.
- Rinse the spray arms thoroughly.
- Reassemble and tighten in position.
- Reassemble the spray arms.
8.1.2 Special maintenance
Special maintenance operations are not foreseen by
the user but must be performed exclusively by the
technical assistance or by an authorised and qualified
technician.
Scheduled maintenance operations must be carried
out every 1000 hours of operation or every 12 months.
- Check the electrical safety according to VDE
0701/0702.
- Check the filter in the water supply valves.
- Check the dosing systems.
- Check the thermostat sensor, thermoelectric
measurements.
- Check the conditions and functionality of the spray
arms.
- Check the safety thermostat.
- Check the seal of the door.
- Check the steam condenser.
- Check the functionality of the drain pump.
- Check the pressure switch.
- Check the drain pipes.
- Check the water supply pipes.
- Check for any leaks.
- Check the fixing of the door lock in regard to the door
seals.
- Replace the prefilter.
- Replace the HEPA filter.
8.1.3 Air suction filter
The thermodisinfector is standard equipped with a
suction filter for drying air (Fig. 22.2), to be replaced
after about 100 hours of work (equal to about 100
cycles).
The machine can also be equipped with an «absolute»
«HEPA H14» class supplementary air filter (on request),
in compliance with EN 1822. We recommend replacing
the HEPA filter every 500 working hours, which is
equivalent to about 1000 operating cycles.
