Vokera Unica Fault codes & diagnostics

19 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.

Gas 2013-present
GC Numbers 47-364-1547-364-1647-094-8347-094-8547-094-87
Download the Vokera Unica manual The official installation & service manual (PDF) — the exact document these fault codes were verified against. PDF

This boiler uses LED flash patterns

Count the flashes in one repeating group before the pause. That number is your fault code. Do not reset until you have noted it. How to read fault codes →

Severity at a glance

Each cell = one fault code. Hover to identify.
19 Unrated
Versions & GC numbers

Which version do you have?

The GC number on your boiler's data badge identifies the exact appliance and production years, as recorded in the UK Product Characteristics Database.

GC number Appliance (register name) Produced
47-364-15 Unica I32 2013–present
47-364-16 Unica i36 2014–present
47-094-83 Unica 28 HE 2006–present
47-094-85 Unica 32 HE 2006–present
47-094-87 Unica 36HE 2006–present

Appliance names and production years are taken from the UK Product Characteristics Database (the SAP/SEDBUK register). Where a GC number is also printed in this model's own manufacturer manual, both sources were checked to agree.

Just want the most common Vokera Unica faults?
The top 6 problems in plain English — with causes, DIY checks and repair costs.
Fault codes

All 19 documented codes

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LED / flash-pattern codes
Digital codes
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