Planned Maintenance - Smeg GW0160 Technical Manual

8 PLANNED MAINTENANCE

The following section is taken from the user manual to provide the engineer with guidance on the essential planned maintenance
procedures.
Maintenance operations are not covered by the product Warranty, which does not include the
replacement of components which deteriorate due to normal wear and tear.
The operations required are:
1. Inspection and if necessary replacement of worn peristaltic pump components (especially the internal hose)
2. Inspection of the detergent intake pipes and replacement if necessary
3. Inspection of the door gasket and replacement if necessary
4. Inspection of the drying system filters (relative and absolute) and replacement if necessary
5. Inspection and if necessary cleaning/replacement of the filters (water intake filters on the filler pipes, detergent
filters on the suction systems)
6. Checking of the intake water hardness setting (the user must first have the intake water analysed to allow the
correct settings to be made)
7. Checking of the detergent dosage settings.
8. Inspection of the steam condenser assembly
a. Inspection of the nozzles, check that water is flowing correctly
b. Inspection of the connection, water intake, water drainage and level pressure switch connection
hoses
9. Checking of the correct operation and calibration of the tank temperature probes. This check is performed:
a. By comparison with a calibrated instrument;
b. Preferably using a target temperature of 93°C and the preset test cycle. The authorised engineer can
activate the test cycle using the " Set -t " menu. With effect from FW version 4.6.x.x, the cycle
includes two consecutive phases at T=T_target to allow calibration in the first phase and a check on
correct operation of the probes during the second phase.
c. Any corrections (offsets on the probe readings) are then entered using the software app.
d. It should be remembered that the temperature acceptability condition, during the extensions, is T
within the range [T_target; T_target+5°C].
10. Performance of a complete operating cycle, including the drying phase, to check for any leaks or malfunctions.
(The test cycle which can be run by the authorised engineer can be used for a simultaneous check on probe
calibration and on the correct operation of the device overall).
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