BoilerFaultCodesWorcester Bosch F0287 Fault Code
The Worcester Bosch F0287 fault code means: your boiler's internal computer has encountered a communication error or a hardware failure, preventing it from safely starting the burner.. It appears on 1 Worcester Bosch model in our database.
Technical description: The burner control unit, or KIM, has an error
What causes the Worcester Bosch F0287 fault?
This fault occurs when the boiler's main brain and its internal security key stop communicating with each other. It is usually caused by a hardware failure where the electronic circuit boards can no longer verify that the burner is safe to light. The boiler stops immediately because it cannot confirm it has the correct settings to operate the gas valve safely.
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 F0287 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Worcester Bosch F0287 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