OIL SMELLS Emergency

Worcester Bosch OIL SMELLS Fault Code

Also written as OILSMELLS — same fault.

The Worcester Bosch OIL SMELLS fault code means: your boiler is leaking oil or fumes, which poses a serious fire and health risk and requires immediate professional attention.. It appears on 3 Worcester Bosch models in our database.

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description: Blocked flue, fumes on startup; Oil soaked boiler, faulty burner operation, numerous lockouts; Odour in boiler room, oil leaks from pipework, flexible hoses connections
Typical repair cost £150-400 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Worcester Bosch models that show the OIL SMELLS fault code

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

Source

Worcester Bosch OIL SMELLS 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 7 July 2026