Err
Hisense
Generic System Error / Self-Test Failure
Display shows a generic 'Err' message and beeps; no specific code number is shown.
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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
Firmware glitch, Keypad stuck or unresponsive, Internal sensor reading out of range, Control board initialization failure
How to Fix / Troubleshooting
Safety first: Unplug the multicooker before any disassembly.
- Soft reset: Unplug the cooker for 10–15 minutes, then plug it back in. Try entering standby and selecting a simple program.
- Check control panel: Wipe the touch panel or keypad with a soft, slightly damp cloth. Ensure no buttons are physically stuck or jammed.
- Remove moisture: If the panel has been exposed to steam or spills, leave the unit unplugged in a dry area for 24 hours.
- Sensor check: Remove the inner pot and inspect the bottom sensor and heating plate for debris or damage. Clean gently.
- Factory reset (if supported): Some Hisense models allow a factory reset via a key combination (consult the user manual). Perform this to clear firmware glitches.
- PCB inspection: If Err persists, inspect the main control board for visible damage. Replace the board if necessary.
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Repair Difficulty
Medium
3/5
Required Part
Main Control Board
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