Ariston LI 640 Manuale di riparazione - Pagina 25

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21. HIGH PRESSURE SWITCH

22. FAN MOTOR

(LI 670 / LI 700 Models Only)

• The Fan Motor Assembly can be accessed by removing the eight (8) Phillips screws that attach the Right Side Panel to the

Dishwasher (Fig. 22-1). The Fan Motor Assembly consists of a large plastic Condensation Chamber and Motor (Fig. 22-2).

• To replace the Fan Motor, unscrew the Upper Vent Cover from inside the Dishwasher (arrow on Fig. 22-3) and slide the

Condensation Chamber out from the side of the Dishwasher. The Fan Motor Assembly and Condensation Chamber is replaced as

a complete assembly.

REPAIR MANUAL

• The High Pressure Switch (Fig. 21-1) is located on the output hose of the

Pump that supplies the Lower Wash Arm. The High Pressure Switch is

Normally Closed (NC) during Dishwasher operation.

OPERATION: When the Dishwasher Filters become completely clogged

TECH NOTE: In Fig. 21-1 The Main Motor and Pump have been removed

Fig. 21-1

Fig. 22-1

water flow through the Pump is reduced and the High

Pressure Switch contacts open. The open contacts

indicate to the Control Board that a Filter Fault exists and

the Control Board will alternately drain and fill the

Dishwasher until the Filters are clear (Filter Cleaning Cycle).

to allow a better view of the Switch. The High Pressure

Switch can be removed and replaced without removing the

Main Motor or Pump Assembly.

Fig. 22-2

L 63 / LL 64 / LL 65

LI 640 / LI 670 / LI 700

Fig. 22-3

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