High
Internal Fault on Worcester Bosch 24CDi BF

Your boiler's electronic brain is failing to communicate correctly, which has caused the system to stop working to avoid potential damage.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Control board likely wet, damaged, or malfunctioning; or small resistor attached to the multiway connector is missing, loose, or in poor condition.

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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