Potterton Netaheat Mk2 10/16 - PCB availability ?

[AndyJ]

Hi all,
I've got a sick Potterton Netaheat Mk2 10/16, which has been diagnosed with a faulty PCB. An engineer I had out popped along to his local supplier and picked up a replacement PCB, only to find it was the wrong type. Another trip resulted in yet another wrong PCB. A phone call to Baxi confirmed that the PCB was obsolete. This is, I accept a very old boiler.

Anyone confirm this? Is there a parts source for obsolete PCBs for this boiler?

Searching the net I've found part #s 407676 & 407677 - neither of which look like my PCB.

 

[herebriefly]

What are the symptoms with regards to the boilers operation (if any)?

 

[AndyJ]

Boiler stopped working Friday evening. I noticed the 1amp fuse on the front had blown. I replaced this and this got the boiler working again. However, 2 hrs later, the boiler stopped working, and the fuse has NOT blown.

Turning the dial no longer shows any spark inside. There' a click, but nothing else. No fan noise (that I can hear), no gas noise, anything. Just nothing.

 

[AndyJ]

doh .. I've been looking at the wrong thing. I was looking at the spark generator, not the PCB.

Aftermarket (reconditioned) PCB's seem to a plenty for this boiler. Code seems to be POTTERTON NETAHEAT 10/16 PCB 205295.

Is there any reason (other than the obvious, "we'd like to install a new boiler in your home sir", as to why I shouldn't look at the replacement (reconditioned) PCB route ?

 

[AndyJ]

Code seems to be POTTERTON NETAHEAT 16/22 PCB 205295.

Or maybe its POTTERTON NETAHEAT 10/16 PCB 205294 ?

 

[twgas]

I would be suspecting the fan as you can't hear it, of course if there is no power to it then you wouldn't but IIRC the fuse protects the PCB from a faulty fan.

 

[herebriefly]

Fan or 11 Pin Relay. Both readily available.