Heatline Vizo 28 Fault codes & diagnostics

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

Combi Natural Gas 28 kW 2008-2012 Discontinued
GC Number 47-157-09

Replaced by: Heatline Capriz

Download the Heatline Vizo 28 manualThe official installation and service manual (PDF). PDF

The fault code is already on your display

Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →

Fault codes

All 1 documented codes

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F2

Your boiler has stopped working because it can no longer accurately measure the temperature of the water in your heating system.

High Engineer only £90-160

Parts commonly replaced

  • Flow Temperature Sensor (NTC)
  • Connecting Wiring Loom

Related codes

Full explanation for F2