Potterton suprima 30. PCB fuse

[Biggles42]

Hi, I've replaced the circuit board on the boiler because of a buzzing noise when trying to light up and eventually all lights going out.Power is definitely going into the board,but no lights.I keep reading on other threads about a fuse on the PCB.Where is this? because mine doesn't appear to have one I've tried disconnecting pump and doesn't make any difference. I've had the usual circuit board problem of intermittent firing up a few times and a new board has always cured it.Never had the loud buzzing(clicking) before.

 

[RandomGrinch]

.I keep reading on other threads about a fuse on the PCB.Where is this? because mine doesn't appear to have one

Try here...

Officially on this site, changing boiler PCB's counts as DIY gas work. You may wish to employ an RGI to ensure that other parts of the ignition circuit are operating correctly, you wouldn't want to damage another PCB.

 

[Biggles42]

Thanks.It actually says fuse on the top.Must go to Specsavers Fuse is intact so problem must be elsewhere.

 

[opps]

Ahh.... it is hidden by a cover.

 

[RandomGrinch]

Ahh.... it is hidden by a cover.

Sorry, my circle should have been a bit more specific - the fuse is mounted in a vertical plastic PCB fuse holder - like this..

If you look closely in my previous image, you can see the screwdriver slot, for releasing the fuse.

 

[Biggles42]

Yes,I found it thanks.Couldn't see the lettering on top for the wires