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Error code reference
Hotpoint Cooktop Error Code F05
ISI UART 1 (CN 03) inductor NTC fault on large induction hotplate: subcode 1: NTC short circuit; subcode 2: NTC open circuit; subcode 3: large induction hotplate not connected.
SourceHotpoint-Ariston Induction Hobs - Service Manual: Platform 2008p. 13
Diagnostic procedure
The full F05 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 the inductor, verifying that the contacts are well connected and clean.
SourceHotpoint-Ariston Induction Hobs - Service Manual: Platform 2008p. 13
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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