ERR
Cuisinart
Control Board or Firmware Error
Display shows “ERR” or “ERROR” and the machine will not respond to button presses.
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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
Power surge or brownout corrupting control logic, Moisture intrusion into control panel, Shorted keypad or stuck button, Failed main control PCB
How to Fix / Troubleshooting
Safety first: Unplug the unit before any inspection.
- Power reset: Unplug the coffee maker for at least 10–15 minutes to allow capacitors to discharge. Plug it back in and check if the error clears.
- Dry the control panel: If steam or liquid has contacted the display or buttons, leave the unit unplugged in a dry, warm area for 24 hours. Do not use a hair dryer on high heat directly on the panel.
- Check outlet and surge protection: Plug the unit into a known-good outlet without an extension cord. Consider using a surge protector to prevent future damage.
- Button test: Gently press each button individually to feel for sticking. If a button is stuck, clean around it with a slightly damp cloth and dry thoroughly.
- Persistent ERR: If the error remains, the main control board or keypad membrane is likely faulty and must be replaced. This requires opening the housing and working around mains voltage—best left to a qualified technician.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board
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