Potterton Puma 80/100 Fault codes & diagnostics

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

Combi Natural Gas 23-29 kW 1997-2005 Discontinued

Replaced by: Potterton Puma i

Choose your boiler type

The Puma 80/100 range comes in 2 types

Pick the one you have. The fault codes, GC numbers and manual differ by type.

80 0 codes · 1 GC number 80e 0 codes · 1 GC number
Each model has its own manual A family spans several manuals, one per model or generation. Pick your model above and its page has the manual its fault codes were read from.

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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Lockout

Your boiler has stopped working because it failed to start after three attempts, which is often caused by an interruption to the gas supply or a trapped air pocket.

High Engineer only £120-250 Shared across the Puma range

Parts commonly replaced

  • Ignition electrode
  • Gas valve
  • Printed Circuit Board
Full explanation for Lockout