Display shows “ERR2” and the unit may shut down shortly after starting a brew.

Safety first: Immediately unplug the coffee maker. Overheat faults can indicate a fire risk. Allow the unit to cool for at least 30 minutes before touching metal parts.

• Check placement: Ensure the machine is not covered by towels, cabinets, or other items that block vents. Move it to an open, well‑ventilated area.
• Descale: Once cooled, perform a full descale cycle. Heavy scale can cause the heater to run hotter than normal, triggering overheat protection.
• Inspect for burning smell: If you notice a burnt plastic or electrical smell, do not use the machine again until it has been inspected by a professional.
• Do not reset thermal fuse manually: Many OXO models use a one‑shot thermal fuse that must be replaced if blown. Do not attempt to bypass or short this fuse.
• Professional repair: Persistent ERR2 indicates a failed thermal fuse, thermostat, or heater assembly. Replacement requires disassembly and safe handling of mains wiring; contact a qualified technician.