Hotpoint WDL756PUK Service Information page 9

Indesit Company
FAULT
NTC dryer sensor open / short-circuiting. Fan
F13
Motor jammed. Condenser or blower clogged
Triac+dryer heating element short-circuit / dryer
heating element leakage on thermofuse side /
dryer heating element interrupted / diverter
relay sticking on wash heating element side
F15
/ dryer heating element pin feedback in short-
circuit with Vdc / Pump not wired / short-circuit
of triac driving pump / diverter relay sticking on
wash heating element side / drain pump pin
feedback in short-circuit with Vdc / Prewash
solenoid valve not wired.
F16
Drum locking (top-loading only)
No UART communication between DSP and
F18
Main
Fan motor not wired / Fan motor driving triac
short circuit or Switch relay contacts
F19
sticking / Fan motor pin feedback in shot
circuit with Vcc
Service Manual UK
CAUSE
- Check the condenser fi lter is not clogged;
- Check there is no fl uff in the blower fan;
If the components are clean or the problem persists despite
cleaning, then:
- Check the effi ciency of the connector contacts of the NTC on
- Check the impedance value of the NTC on the relevant connector
- If measurement is incorrect, check NTC wiring;
- Check the same parameter (20k ) directly on the NTC.
- Replace the NTC;
- Replace the main PCB.
-
- Check the connector of the dryer heating element (1500W /
- Check leakage between the two ends and ground, impedance
- Check effi ciency of Drain Pump contacts on PCB;
- Check continuity of Drain Pump on connector (pins 4 and 5 in
- Check the drain pump wiring;
- Check the Solenoid Valve connectors and wiring;
- Replace the drain pump;
- Replace the dryer heating element;
- Replace the damaged solenoid valve;
- Replace the main PCB.
- Check for 220 V power at the lock;
- Check the connectors;
- Check continuity of wiring;
- Replace PCB.
- Disconnect appliance for 2 minutes. Check that correct operation
- If fault reappears renew main PCB.
- Check effi ciency of connector and wiring continuity on the blower
- Check effi ciency of connector and wiring continuity on the heating
- Check fan motor is not in short circuit or open circuit;
- Check fan motor turns freely (it is not blocked partially);
- Replace the main PCB.
Note: Faults F04 and F10 are not present
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SERVICE ACTIONS
the main PCB;
(next to Main PCB) between pin 1 and pin 2. The impedance
value at ambient temperature (20°C) must be approximately
20k ;
Check effi ciency of relative contacts on the connector on PCB
side;
230V), ensuring between pins 1 and 2 that the impedance value
is approximately 36 ;
should be at least 2 M ;
case of classic door lock), ensuring that impedance value is 170
+/- 10%;
has been restored by starting the Autotest routine;
fan;
element of the blower;
English