Unknown
Sensor Fault on Worcester Bosch 28 i SI

Worcester Bosch 28 i SI fault code Sensor Fault

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

What the manual says

Manufacturer manual

DHW or CH sensor connectivity issues, out of range resistance, or sensor mounting issues.

From this model's manual
Verified against the Worcester Bosch/Worcester Bosch 25 28si Series installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

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

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All 8 fault codes on the 28 i SI

Seeing a different code? Every code this model can display, in one place.

Air Pressure FaultBurner LockoutF1F2KLPrimary Overheat

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