0828 Medium

Vokera 0828 Fault Code

The Vokera 0828 fault code means: your boiler is struggling to detect when you turn on a hot tap, which means it is failing to heat your water properly.. It appears on 1 Vokera model in our database.

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.

Technical description: D.H.W. & Flow Microswitch
Typical repair cost £120-220 (including labour)

Engineer required

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

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Vokera models that show the 0828 fault code

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

Source

Vokera 0828 fault code information on this page is sourced and cross-checked against the official Vokera service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026