Error code reference

Ariston Oven Error Code ER20

Oven temperature sensor readings are incorrect or out of expected range.

SourceAriston Experience Touch FZ100 - Service Manual (2004)p. 17

Diagnostic procedure

The full ER20 procedure

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MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Verify sensor operation - at room temperature, resistance at terminals should be approximately 545 ohms; if OK, replace sensor; then replace power supply board.

SourceAriston Experience Touch FZ100 - Service Manual (2004)p. 17

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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

2 manuals in the MyPros+ library document this code for Ariston oven.

Models covered by the manuals that document this code

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The full ER20 procedure

Where this code is documented

Models covered by the manuals that document this code

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