Search results

Dear Tony, Thanks for your comment re series resistor possibly failing. My cousin will be able to check whether that is separate from any item he has already tried changing. He doesn't operate entirely by trial and error but probably isn't quite as systematic as I would be if I was attempting...

Hi, As more or less predicted, the replacement gas valve didn't solve my cousin's boiler not starting problem. Apparently the pilot light didn't even come on with the new valve......which it had been doing with the allegedly faulty existing valve(s)..... my cousin isn't CORGI Registered he's...

Dear Gentlemen, Thank you for your comments and parts info. I ordered a 905371 gas valve yesterday from an internet supplier. It can be returned if it doesn't fix the problem. My cousin says he has already tried replacing the mercury switch. So problem remains a mystery. As I said before, I...

My cousin has a Potterton Netaheat 16/22 Mk2F the fan on which turns on then the pilot light comes on but the main gas doesn't come on. He thinks the 905371 gas valve may need replacing. But has tried one from a spare gas boiler he has and that didn't work. Can anyone comment on whether they...