Medium
8.2 Diagnostic LED Indicators on Halstead Eden CBX/SBX

The boiler's internal diagnostic system has detected a fault, and you should check the specific pattern of the coloured LED lights to identify the issue.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

The Halstead VBX range has a visual diagnostic display to assist in fault finding. The display consists of 3 LEDs (Green, Yellow, and Red).

From this model's manual
Verified against the Halstead Eden 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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