BoilerFaultCodes.com
1 Low

Your boiler is currently performing a standard safety check, which involves clearing air through the system before or after it produces heat.

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.

Technical description: Pre-purge: before start-up, the boiler is purged for 3 seconds. Post-purge: when the heat demand has been met, the fan continues to operate for another 10 seconds.

DIY fix possible

This is a normal operational status message, not a fault; no action is required.Wait a moment to see if the boiler begins its ignition sequence automatically.If the boiler remains stuck on this code for more than 10 minutes, turn the power off and on again to reset the system.

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