Potterton Housewarmer Fault codes & diagnostics

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

RegularSystem Natural Gas 8.8 kW 1994-2003 Discontinued
GC Numbers 37-590-1637-590-1737-590-18
Choose your boiler type

The Housewarmer range comes in 2 types

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

Housewarmer 45 0 codes · 1 GC number Housewarmer 55 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 shut itself down safely because the tiny flame that starts the main burner is blocked or not burning properly.

Emergency Engineer only £90-180 Shared across the Potterton Housewarmer range

Parts commonly replaced

  • Pilot injector
  • Thermocouple
  • Pilot assembly

Related codes

Full explanation for Lockout