Low
C. (1) on Potterton Kingfisher 2

Your boiler is not heating up because the temperature dial is turned down too low or switched to the off position.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Main burner fails to light, pilot burning - Boiler thermostat set to ‘OFF’ or low setting.

Shared across the range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Locate the thermostat dial on the front of the boiler control panel.Turn the dial clockwise to a higher temperature setting.Ensure the external wall thermostat or programmer is also set to call for heat.

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All 17 fault codes on the Kingfisher 2

Seeing a different code? Every code this model can display, in one place.

A. (1)A. (2)A. (3)A. (4)A. (5)A. (6)B. (1)B. (2)B. (3)B. (4)B. (5)C. (2)C. (3)C. (4)C. (5)D. (1)

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