E02 displayed; unit overheats and shuts down

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

Blocked heat exchanger, Pump failure, Closed valves, Faulty overheat thermostat

Safety: Allow the heater to cool. Do not bypass the overheat thermostat.

1. Reset after cooling: Press the manual reset on the overheat thermostat if accessible.
2. Check circulation: Ensure pump runs and valves are open.
3. Clean heat exchanger (technician): Descale or flush the primary heat exchanger.
4. Replace faulty thermostat: If it trips repeatedly at normal temperatures, replace with a genuine Beretta part.

Hard 4/5

Overheat thermostat

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