Indesit Ariston AQL 89H Service Manual - Page 23

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FAULT

Wash heater relay welded

(signalled in presence of

"empty") or pressure switch

F08

fixed on "empty" (empty and

full simultaneously).

Fault

F09

(EEPROM

grammed or not working)

No signal of simultaneous

F10

"full" and "empty"

No pump feedback (drain

pump disconnected or

F11

winding interrupted).

No communication be-

F12

tween display board and

control board

Faulty communication between

F18

Microprocessor and DSP (Dig-

ital Signal Processor).

Service Manual

Aqualtis - 2005

CAUSE

- Check the efficiency of the contacts of J3 connector on the board;

- Check the state of the pressure switch verifying ohm-continuity on

J3 wiring connector, pins 2 and 4 (only with empty tank), pins 2 and

3 (only with water in the tank) and pin 2 and 1 (only with water in the

tank over half door glass level);

- Ambient with a high rate of humidity;

- In case of board with EEPROM welded on it, replace board and

setup

file

EEPROM;

not

pro-

- In case of spare EEPROM, check the correct fitting of the EEPROM

in the socket of the board.

- Check the efficiency of contact on J3connector on the board;

- Check the state of the pressure switch, verifying the ohm-continuity

on the wiring connector J3 pins 2 and 4 (it must be present with

empty tank only) and pins 2 and 1 (it must be present with water in

tank over half door glass level);

- Check the wiring of J3-connector/pressure switch;

- Replace pressure switch;

- Replace board.

- Check the efficiency of the contacts of J9-connector on the board;

- Verify on J15 connector, pins 1 and 2 (in case of wm with Easy Door

door lock) or on J9 connector, pins 8 and 9 (in case of general door

lock) the continuity of the pump, checking the resistance value 170

- Check the wiring of the J15 connector (or J9)/pump;

- Replace pump;

- Replace board.

- Check efficiency of contacts of the J11 connector on the board;

- Check the continuity of J11-connector/5-output connector of the dis-

play board;

- Replace main board;

- Replace board display

CHECK-UP

;

Edition

2005.07.06

Language

English