BoilerFaultCodesYour boiler is operating normally and there are currently no faults detected within the system.
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.
Technical description: NO FAULT
What causes this fault?
This code appears when the boiler's internal diagnostic system performs a self-check and confirms that every component is functioning within its correct parameters. It simply means there are no active electrical or mechanical issues preventing the unit from heating your home. You will see this during routine operation or after a previous fault has been successfully cleared and resolved.
DIY fix possible
No action is required as this is the standard code for normal operation.If you have no heating, check your external thermostat or programmer settings.If the code persists while the boiler isn't firing, ensure your gas and water supplies are turned on.
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A boiler cover plan would cover faults like 00 — no call-out fees, no surprises.
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