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Worcester 24i rsf not firing up

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  • Worcester 24i rsf not firing up

    Hi ,

    I have a worcester 24i which is 7 years old and not firing up with the CH or hot water tap running. All I get is the pump running, no fan or ignition. I had a problem with the PCB last year so that is virtually new so unlikely to be the problem this time. I have tried tapping the gas valve with a hammer as I have read this can be a common fault?

    Any ideas what is likely to be faulty?


  • #2

    You should check the that you have 240v across live and neutral at the fan with a multi meter it will be this that is faulty. I dont suggest tapping the gas valve with a hammer ha ha, in the igintion sequence of the boiler the fan must be running long before the gas valve opens or beings to operate.


    • #3
      I have found that one of the componants on the fan has actually burst open and obviously knackered thefan!


      • #4
        It is the fan OR the air pressure switch, test the ohms on the fan with the wires off, should be 1ohm, any less its knackered