What to check, in order
- Press Cancel and let it cool
Wait for the heating element to cool before you go near the base.
- Check the cooker base
Make sure nothing has fallen into it. Put the inner pot in, or reseat it, and set the programme again.
- Check for scorching
If the pot was in place, look at its bottom for burnt-on food and clean it off.
- Add thin liquid
At least 1 cup (250 mL) for a 3-quart pot, 1½ cups (375 mL) for a 6-quart, 2 cups (500 mL) for an 8-quart and 2½ cups (625 mL) for a 10-quart.
When to call an engineer
If it comes back with the pot in place and enough liquid, contact Instant Brands Customer Care.
Quick answers
What does the Instant Pot C5 error code mean?
The base got too hot, either because the inner pot isn't in the cooker or because there's no liquid in it.
Can I fix Instant Pot C5 myself?
Very easy (about 10 minutes). Start with: press Cancel and let it cool; check the cooker base; check for scorching. If it comes back with the pot in place and enough liquid, contact Instant Brands Customer Care.
Is Instant Pot C5 worth repairing?
Usually free. It's almost always the pot or the liquid, not a fault.
Checked against
- Instant Pot UK: Duo Plus with Whisper Quiet user manual (PDF)
- Instant Pot UK: Duo Nova user manual (PDF)
- Instant Pot: frequently asked questions
Last reviewed October 2026. Manufacturers update their pages, and your manual is the final word. Spotted a mistake? Email contact@appliance-error-codes.com.