Zojirushi Keep-Warm Temperature Too High

Keep-warm mode overheats food, drying it out or burning the bottom.

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.

Possible Causes

Faulty keep-warm temperature sensor calibration, Control board firmware or logic issue, Thermistor out of tolerance, Inner pan not making proper contact

How to Fix / Troubleshooting

Safety first: Unplug before cleaning or inspection.

Stir and fluff: After cooking, fluff rice and spread it evenly to reduce hot spots.
Limit warm time: Avoid leaving food on keep-warm for many hours; use shorter durations.
Check pan contact: Ensure the inner pan bottom is clean and flat for accurate sensing.

When to call a technician: If keep-warm consistently overheats even with proper use, sensor or board calibration may need service.

Repair Difficulty

Medium 3/5

Required Part

Bottom Thermistor, Main Control PCB

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