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DGS-TDS-N07.2003 C.D. 599 51 74-13 EN
7.9 Anti-foam control system
The anti-foam control procedure is performed via the anti-boiling pressure switch (AB).
Spin phase without foam Spin phase with little foam
- Spin with little foam: if the contact of pressure switch AB closes on FULL, the spin phase is
interrupted; the drain pump continues to operate and, when the contact returns to EMPTY, the spin
phase is resumed.
- Spin with excessive foam in the tub (critical situation): The control system detects whether the
pressure switch commutates 5 times to FULL. in this case, the spin phase is skipped, and a one-
minute drain cycle is performed with the motor switched off; in the case of a washing phase, a
supplementary rinse is added.
)8&6
)8&6
spin
spin
Anti-foam
(Level AB)
300 rpm
pulses
300 rpm
pulses
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