Persistent sour, musty, or rancid odor from inside the cooker even after normal cleaning.

Safety first: Unplug before disassembling any parts.

• Deep clean removable parts: Remove the inner pan, lid gasket (if removable), inner lid, steam cap, and condensation collector. Wash all with warm soapy water, rinse, and dry thoroughly.
• Clean non-removable lid surfaces: Wipe with a cloth dampened with mild detergent, then wipe again with clean water and dry.
• Air out the cooker: Store with the lid slightly open to allow ventilation.
• Deodorize: Cook a batch of water with a small amount of vinegar (if allowed by manual), then rinse and dry.

When to call a technician: If odor persists and you suspect residue inside non-user-serviceable areas, professional disassembly and cleaning may be needed.