Potterton promax 28

[thor2]

I have above boiler and it is blowing both internal 2amp fuses, replaced them and it worked for a bit but it has blown the fuses again? any suggestions as what might be the cause.

Thanks John

 

[SilentMike]

normally the pump or fan but could be something else best to get some one in will save guess work and changing the wrong part

 

[thor2]

Solution was the diverter valve leaking letting water into valve motor causing short circuit