Electrolux W4180N - Function

98
2
6665
2
1
4
3
K21
6664
K21
K22
2
1
4
3
5
5
Heating
Function
Electricheatingwithfusiblecut-outonelement
The three heating elements in the machine are
connected to separate phases and are switched
onandoffusingoneortwoheatingcontactorrs,
K21ochK22(twocontactorsareusedforhigher
heatingpower).Theheatingcontactorsarecon-
trolledbytheprogrammeunitA1,output(X36:7).
Theprogrammeunitreceivesinformationonthe
water temperature in the machine through an
analoguesignalfromthetemperaturesensor
situated in the outer drum. The programme unit
controls the heating contactors to achieve the
setwatertemperatureforthecurrentwashing
programme.
When there is no water in the drum, the pro-
grammeunitpreventsswitch-onoftheheating
elements.Ifanerrorwouldneverthelesscause
theelementstoswitchon,aslow-blowfusetrig-
gerstoswitchthemoffagain.Thentheheating
elements has to be changed.
 1. Heatingelements
 2. ProgrammeunitA1
 3. Voltagesupply
 4. Temperaturesensor
5. I/O-card
2