Drain Pump; Anti-Flooding Device - Electrolux washing machine Service Manual

7.7 Drain pump

1. PCB
2. Anti-boiling pressure switch
8. Drain pump
AB_S Anti-boiling level sensor
The PCB powers the drain pump via a triac as follows:
for a pre-determined period.
until the anti-boiling pressure switch closes on EMPTY, after which the pump is actioned for a brief
period or passes to the subsequent phase.

7.8 Anti-flooding device

1. PCB
8. Drain pump
9. Anti-overflow pressure switch
HV1_S Anti-overflow level sensor
The third pressure switch level (if featured) is used as an anti-overflow safety device: if the pressure switch
contact should open in the FULL position, the PCB actions the drain pump until the pressure switch returns
to the EMPTY position.
SOI/DT 2005-01 dmm 29 599 36 86 11