BoilerFaultCodesYour boiler is currently preparing to supply hot water and is in a normal sequence of starting up its internal fan.
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: DHW mode: Fan start-up. The fan start-up for domestic hot water mode is activated.
What causes this fault?
This status code appears when you turn on a hot tap and the boiler begins its startup sequence to heat your water. It occurs as the internal fan begins to spin up to the correct speed to safely vent exhaust gases, which is a vital part of the ignition process. This is not a fault, but rather a brief progress update showing that the boiler is responding correctly to your request for hot water.
DIY fix possible
This fault may be fixable without an engineer. Check your manual first.
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