Error code reference

Ariston Refrigerator Error Code C1

Anomalous cycle fault - compressor ON but freezer temperature fails to decrease; defrost sensor detects temperature >-5°C with compressor running more than 3 hours.

SourceAriston MSZ 70 NF - Service Manual: Side-By-Side Refrigeratorp. 26

Diagnostic procedure

The full C1 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
Check normal operation of refrigerant circuit; error terminates when defrost sensor detects temp >-5°C with compressor OFF.

SourceAriston MSZ 70 NF - Service Manual: Side-By-Side Refrigeratorp. 26

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 refrigerator.

Models covered by the manuals that document this code

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