Worcester Bosch Heatbank Overheat Stat Fault Code
Also written as HEATBANKOVERHEATSTAT — same fault.
The Worcester Bosch Heatbank Overheat Stat fault code means: your boiler has detected that the water storage tank has become too hot and has automatically shut down to prevent damage or safety issues.. It appears on 5 Worcester Bosch models in our database.
Technical description: Tripped. All functions stopped. Investigation of reason/reset required.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Worcester Bosch models that show the Heatbank Overheat Stat fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Worcester Bosch Heatbank Overheat Stat 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