Hotpoint Arcadia WMF720GUK.RA, Service Information

Page: 19 / 30

19 of 30
Indesit Company
Service Manual UK English
continued...
F02 Motor tripped,
motor tacho
generator open
circuit or short
circuit - Check for water leaks that may affect connector J009 causing the
contacts to short circuit;
- Check to ensure motor is not mechanically jammed or seized;
- Check efficiency of the contacts on connector J009 on the PCB;
- Check the motor side connector;
- Check motor winding and check that the impedance value on wiring
connector J009 between pins 3 and 4, 4 and 5, 3 and 5 is less than
100 Ohm; (three phase)
- Check the tacho generator winding and check that the impedance
value on wiring connector J009 between pins 1 and 2 is between 115
and 170 Ohm;
- Check the tacho generator wiring;
- Disconnect appliance for 2 minutes. Check that correct operation has
been restored by starting the Autotest routine;
- Renew motor
- Renew PCB.
F03 NTC wash sensor
open / short
circuit - Check efficiency of contacts on connector J005 (commutator) or J12
(three-phase) on PCB;
- Check NTC ensuring that the impedance value at ambient
temperature (20°C) on wiring connector
J005 (commutator) or J12
(three-phase) pins 1 and 2 is approximately 20 KOhm
- If measurement is incorrect check continuity of wiring
J005
(commutator) or J12 (three phase), pins 1 and 2 / NTC;
- Check the same parameter directly on the NTC (20 KOhm);
- Renew NTC;
- Renew PCB.
F05 Pressure switch
empty condition
not reached or
drain pump
jammed - If status type pressure switch check correct operation of component;
- Check efficiency of contacts of connector
J006 (commutator) or J7
(three phase) on PCB;
- Check wiring of connectors J006 (Commutator) or
J7 (three phase)
/ Pressure switch;
- Check continuity of pump on connectors J004 (commutator) or J11
(three-phase), pins 4 and 5 (in case of classic door lock); check that
impedance value is 170 Ohm
+ 1 - 10%;
- Check wiring of connectors J004 (commutator) or J11 (three- phase),
pins 4 and 5 / pump;
- Check pump and wall drain outlet;
- Renew drain pump;
- Empty tank, reprogram Main PCB then start autotest routine;
- Renew linear pressure switch;
- Renew PCB.