High
8.3 Faulting Finding Codes on Halstead Eden Vbx

Your boiler has detected an internal error that requires a professional manual to identify the specific cause.

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.

What the manual says

Manufacturer manual

Please refer to the separate fault finding chart for full details of all fault codes.

From this model's manual
Verified against the Halstead Eden Cbx Sbx System 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 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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