Safety overheat device tripped High

Worcester Bosch Safety overheat device tripped Fault Code

Q: What does the Worcester Bosch Safety overheat device tripped fault code mean?

Your boiler has sensed that the water inside has become dangerously hot and has shut itself down as a safety precaution.

Q: How much does it cost to fix Worcester Bosch error code Safety overheat device tripped?

Typical repair cost for the Worcester Bosch Safety overheat device tripped fault is £120-450 including labour.

Also written as SAFETYOVERHEATDEVICETRIPPED — same fault.

The Worcester Bosch Safety overheat device tripped fault code means: your boiler has sensed that the water inside has become dangerously hot and has shut itself down as a safety precaution.. It appears on 1 Worcester Bosch model in our database.

Technical description: All air vented. Water pressure above minimum. Leaks or blockage. Condition and attachment of CH flow sensor. Pump and associated wiring/connections. Connections and wiring to overheat thermostat devices. Otherwise replace control board.

Typical repair cost £120-450 (including labour)

DIY fix possible

Check that your radiator valves are open to allow water to circulateEnsure the system pressure gauge is between 1 and 1.5 barTry to reset the boiler using the reset button on the front panel

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Worcester Bosch models that show the Safety overheat device tripped fault code

Click a model for the full fault code list and model-specific repair notes.

Greenstar i Repair: £120-450

Source

Worcester Bosch Safety overheat device tripped fault code information on this page is sourced and cross-checked against the official Worcester Bosch service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026