- Replace the NTC.
- Clean and refi t the connectors.
- Change the wiring.
- Replace the main board.
Check resistance value of the NTC. It
should be about 500 kOhms in room
temperature.
Check state of the connectors.
Check continuity and state of the
wiring.
Front NTC open or
short circuit.
FAULT 03 – FRONT NTC FAULT
STATE
INTERVENTION TO BE PERFORMED
CORRECTIVE ACTIONS
-
Triac in short circuit; replace the main board.
Valid only for condenser models
FAULT 04 – PUMP TRIAC WELDED CLOSED
STATE
INTERVENTION TO BE PERFORMED
CORRECTIVE ACTIONS
Pump is working when
it should not.
- If not ok, replace the pump.
- Clean and refi t the connectors.
- If not ok, replace the wiring.
- If not ok, (triac of the pump does not close),
replace the main board.
Check resistance continuity of the
pump.
Check state of the connectors.
Check continuity and state of the wiring.
Check that there is voltage (220V)
on the pins 1 and 2 and 3 on the
connector J5.
No pump action
No feedback from pump
Valid only for condenser models.
FAULT 05
STATE
INTERVENTION TO BE PERFORMED
CORRECTIVE ACTIONS
ARISTON
INDESIT
ARISTON
INDESIT
ARISTON
INDESIT
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