I have a Potterton Netaheat Electronic 10/16 gas boiler and the Gas
Valve has broken.
The part is obsolete (for 2 years) and i'm having problems getting
hold of one.

Trouble is i'm in the process of selling the house so don't really
want to spend the money on a new boiler so would rather patch up the
existing one, if possible.

If done extensive searching on the Internet with no luck.

Any ideas where I could get hold of a secondhand Gas Valve or if its
possible to refurbish/fix them?

Cheers