Low
283 on Worcester Bosch 24 RSF

Your boiler is simply performing its normal startup routine and checking everything is ready before it lights the flame.

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.

Technical description

The boiler is preparing for a burner start – the fan and pump are activated

DIY fix possible

This fault may be fixable without an engineer. Check your manual first.

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