Operation Manual

Servicing and maintenance
56
8.3 Monthly cleaning
Cleaning the water inlet filter
 Close the on-site stopcock for the water supply.
 Clean the filter.
Only for the PG 8172 ECO model
Cleaning the ECO module
 Slide the ventilation grille upwards and remove it.
 Clean the space behind the ventilation grille with a cleaning
cloth.
 Wash the ventilation grille in the machine and then refit.
 Open the hood.
 Spray the suction channel with warm water. Use a water hose,
not a high-pressure cleaner.
 Clean the suction channel with a cleaning cloth.
8.4 Descaling
If the machine is operated with water of high hardness without water treatment, descaling is necessary at
regular intervals ( 12).
8.5 Maintenance by the Service Department
We recommend that you have an authorised service technician carry out the maintenance of the machine at
least once a year so that vulnerable parts can be checked and replaced accordingly. Original spare parts
must be used for repairs and the replacement of worn parts.
Worn parts are, for example:
 Dosing tubes
 Bearings of the spray arms
 Hood seal
 Water inlet hose
In the electronic control unit, the number of hours of operation or wash programmes before
servicing should be performed can be programmed and at what number of hours of operation
remaining the symbol for maintenance/service is displayed. If necessary, have this function
activated by an authorised service technician.