BoilerFaultCodesYour boiler is simply indicating that it is currently pre-heating itself to ensure hot water is available quickly when you need 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: Warmstart demand (warm start)
What causes this fault?
This status occurs when the Warmstart function is activated, causing the boiler to periodically fire up to keep its internal heat exchanger at a set temperature. It is a normal internal process designed to reduce the time you have to wait for hot water to reach your taps. No actual fault exists; the boiler is simply maintaining its own heat levels in anticipation of your next request for water.
DIY fix possible
No action is required as this is a normal status message rather than a fault.If you wish to stop this occurring, you can turn off the 'Warmstart' function using the hot water temperature dial.Check that your heating and hot water are still working as expected.
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