Zojirushi Overheating / Temperature Regulation Failure

Unit overheats; rice burns on the bottom or food scorches frequently, even on normal settings.

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 bottom thermistor, Thermistor detached from heater plate, Control board not cycling heater correctly, Inner pan coating damaged causing sticking and hot spots

How to Fix / Troubleshooting

Safety first: Unplug and allow to cool before cleaning.

Verify recipe and water level: Ensure you are using the correct water-to-rice ratio and program for your model.
Inspect inner pan: Check for severe scratches or worn nonstick coating. Replace the pan if food sticks badly or coating is flaking.
Clean sensor area: Remove the pan and gently wipe the center sensor and heating plate with a soft dry cloth.

When to call a technician: If burning continues with correct usage and a good pan, the thermistor or control board may need replacement.

Repair Difficulty

Medium 3/5

Required Part

Bottom Thermistor, Inner Pan, Main Control PCB

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