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Mend Worcester 24i Junior Boiler Central Heating Water Flow Switch

Worcester 24i Junior - Only stays on for 5 Secs?

Further to my post about the melted water flow switch filter, the boiler fires up but only stays on for 5 seconds before turning off now, for both water and central heating demand. No flashing lights on front or anything. If I disconnect the Air Flow switch and blow into the red tube it will then fire up again for only for 5 seconds. Really flummaxed. Ta!

Stu
November 2009
WorcesterWorcester 24i JuniorHeating, Home Heating SystemsBoiler Central Heating Water Flow Switch

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Worcester 24i Junior: Fires Up, Then Off - Help!