Zojirushi
Excessive Boil-Over / Vent Sputtering
Steam and liquid sputter excessively from the steam vent, making a mess on the countertop.
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Possible Causes
Overfilled pan, Incorrect rice type or starch-heavy foods without proper program, Clogged steam cap or vent, Missing or damaged inner pressure cap
How to Fix / Troubleshooting
Safety first: Steam is hot; keep hands and face away from the vent during operation.
- Reduce fill level: Stay below the maximum markings for the selected food type.
- Use correct program: Select the program designed for porridge, mixed rice, or high-starch foods.
- Clean steam cap and vent: Remove the steam cap and inner pressure cap (if present). Wash thoroughly, clear all holes, rinse, and dry.
- Check for missing parts: Ensure all vent components and gaskets are installed as per the manual.
When to call a technician: If sputtering continues with correct use and clean vents, internal pressure control may need inspection.
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Repair Difficulty
Easy
2/5
Required Part
Steam Cap, Inner Pressure Cap
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