BoilerFaultCodesPotterton Kingfisher MF RSL/CFL Fault Codes
Regular Natural GasLPG 12-30 kW 1994-2003 Discontinued
GC Numbers: 41-590-5041-590-5141-590-5241-590-5341-590-5441-590-5541-590-5641-590-57
Replaced by: Promax SL
The fault code is already on your display
Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →
Most common fault codes
All 1 fault code
| Code | Severity | Plain English |
|---|---|---|
| Red LED is 'ON' | High | Your boiler has detected an internal fault or is not receiving a signal to start, and has locked itself out for safety. |
Potterton Kingfisher MF RSL/CFL is discontinued — time for a new one?
Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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