Display shows E05 and the coffee maker shuts down or will not start; no heating occurs.
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
How to Fix / Troubleshooting
Safety: Unplug the coffee maker. Do not attempt to bypass any safety devices such as thermal fuses or thermostats.
E05 indicates the overheat protection circuit has been triggered.
- Allow extended cool‑down: Let the unit sit unplugged for at least 30–60 minutes, then plug back in and test. Temporary overheating can sometimes reset.
- Descale thoroughly: Severe scale on the Braun heating element can cause localized overheating. Run 1–2 full descaling cycles with Braun‑approved descaler, then flush with several tanks of fresh water.
- Check for restricted flow: Ensure the water reservoir outlet and internal inlet screen are not blocked by debris or coffee grounds.
If E05 persists and the unit never heats, the internal thermal fuse or thermostat has likely failed and must be replaced. This involves opening the base and working around mains wiring and should be left to a professional technician.