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Error code reference
Ariston Dishwasher Error Code AL 04
NTC thermistor circuit not compliant - the NTC electrical circuit is open or closed for 9 seconds, indicating no continuity.
SourceMerloni Dishwasher EVO3 - Full Service Manualp. 46-48
Diagnostic procedure
The full AL 04 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Replace timer if NTC is faulty; check NTC connections and verify it is properly attached to casing.
SourceMerloni Dishwasher EVO3 - Full Service Manualp. 46-48
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented
1 manual in the MyPros+ library documents this code for Ariston dishwasher.
Models covered by the manuals that document this code
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