U12
Cuisinart
Unstable Pressure / Rapid Pressure Loss
Display shows U12 and the cooker aborts the pressure cycle prematurely.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Intermittent steam leak, Loose lid lock, Warped inner pot causing poor seal, Pressure sensor intermittent fault
How to Fix / Troubleshooting
Safety first: Do not touch the lid or valve while the cooker is actively venting.
- Check lid lock engagement: Ensure the lid is rotated fully into the locked position and that the handle is down.
- Inspect inner pot rim: Remove the pot and check the top rim for dents or warping that could prevent a proper lid seal. Replace the pot if damaged.
- Observe during operation: During a test cycle with water, watch for intermittent bursts of steam from the lid or valve that coincide with the error.
- Replace sealing parts if needed: If leaks are observed, replace the lid gasket and valve seals.
- Service for sensor issues: If no leaks are visible, U12 may indicate a failing pressure sensor or control board, requiring professional repair.
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Repair Difficulty
Medium
3/5
Required Part
Inner Pot and Lid Gasket
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