Faulty Worcester 24 CDI RSF Boiler

[goobjoob]

Hi,I have a Worcester 24CDI RSF combi boiler.When you switch on after a couple seconds the DHW demand indicator flashes fast.If you then switch off and back on again the fan tries to turn but stops.Then after about 15 times switching on and off it's as if the bearing in the motor of the fan has had some oil put on it and starts to work properly and so the boiler then fires up. I have changed the air pressure switch but no difference.Any advice please.​

 

[SimonJohns]

Fans broken by the sounds of it


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[diamondgas]

If you're getting power to the fan and it ain't spinning I'd reccon it's that... Have you checked the fan for power to the motor? Do you know how too?

 

[goobjoob]

Sorry,Not sure how to,But I guess at the motor you would test for voltage at the two spade connectors .Any advice would be appriciated.Thanks Again

 

[diamondgas]

Sorry,Not sure how to,But I guess at the motor you would test for voltage at the two spade connectors .Any advice would be appriciated.Thanks Again

You should have mains 240v at the fan. Ideally you should check the connection from the PCB to the fan. If you're not sure how to though I'd advise that you consider getting someone in who knows what they're doing. Messing with things you're not confident or competent with where gas is concerned can be fatal! :death:

 

[goobjoob]

Thanks Diamondgas will take your advice and get someone in