Display shows a generic “ERR” or “ERROR” message and the machine will not start a brew cycle.

Safety first: Unplug the coffee maker before any inspection. Do not open the housing while it is connected to power.

• Power cycle: Unplug the unit for at least 10 minutes to allow capacitors on the control board to discharge. Plug it back in and check if the error clears.
• Check button panel: Inspect the control panel for stuck buttons or moisture. Wipe with a dry, lint‑free cloth. Do not spray cleaner directly onto the panel; apply it to the cloth first.
• Room temperature: Ensure the coffee maker is in a normal room‑temperature environment. Extremely cold or hot conditions can cause sensor readings to go out of range.
• Reset sequence: Some OXO models support a factory reset (e.g., holding the power and timer buttons together for several seconds). Refer to the manual and perform the reset if available.
• Stop if error persists: If the ERR message remains, the main control board or a critical sensor is likely faulty. Internal diagnostics and board replacement should be performed only by a qualified technician.