Low
F6 on Heatline Sargon 30

Your boiler is struggling to detect the outside temperature, so it is defaulting to a standard operation mode to ensure you still have heating and hot water.

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

External temperature probe damage

From this model's manual
Verified against the Heatline/Heatline Sargon 24 installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

F7View →

All 18 fault codes on the Sargon 30

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

CCF0F1F01F2F02F3F03F4F04F5F05F06F07F8F9OC

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