Jenn-Air JDB9600AW, Техническое образование, Страница: 80 / 193

BBDUDBHQBE±3DJHRI
5.1.4 Checking water supply
The electronics check the water level in the appliance during the pre-
rinse and wash cycles via the heating pump (uniformity check). If re-
quired, the water is topped up.
The filling capacity for the clear rinse is filled during the inter-mediate
rinse cycle and stored in the heat exchanger. The
capacity is
measured via the pulses of the impeller flow meter only. A uniformity
check during the final rinse cycle no longer occurs. If there is too little
water left in the heat exchanger for the final rinse cycle, a poor clean-
ing and/or drying result can be expected.
Reasons for too little water may be:
►
– Water pressure / - flow too low (supply hose kinked, angle valve
calcified, flow rate Aquastop)
►
– Heat exchanger drainage valve leaking
5.1.5 Water pressure too low
There is a ventilation opening in the free flow section. Usually the water
in the flow section flows past the opening.
If the water pressure is so low that the impeller flow meter is just res-
ponding, the water no longer flows past the opening. Leakage water
flows via the overflow channel to the expansion opening into the
rinsing tank. The heat exchanger is not completely filled.
Since FD 8905 an additional barrier (bar) has been inserted into the
over-flow channel of the heat exchanger. This barrier ensures that
leakage water flows out of the free flow section into the heat
exchanger.
Note: Water in the heat exchanger is therefore not softened. Lime-
scale deposits on the utensils may be an indication of this.
1 Leakage water 3 Overflow channe
2 Expansion opening l