What to check, in order
- Use the pot made for your model
Duo Evo Plus: the correctly sized inner pot with easy-grip handles. Pro Plus: a stainless-steel Pro Series cooking pot with easy-grip handles.
- Only use Instant inner pots
Instant's safety rules say to use only an authorised stainless-steel Instant Pot inner pot, to reduce the risk of pressure leaking.
When to call an engineer
If it shows C8 with the right pot in place, contact Instant Brands Customer Care.
Parts people end up buying
Only if the checks above point to a part. Match it to your model number first: it's on a label on the back or the underside of the base.
- Inner pot with handlesSearch on Amazon
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Checked against
- Instant Pot UK: Duo Evo Plus user manual (PDF)
- Instant Pot UK: Pro Plus user manual (PDF)
- Instant Pot UK: Duo Plus with Whisper Quiet user manual (PDF)
Last reviewed September 2026. Manufacturers update their pages, and your manual is the final word.