Recent content by Wolstan

I have a Potterton Netaheat Electronic 10/16 (the 'Widowmaker'!). It is now 23 years old, but save for two fan replacements seems to be fine. I am aware the gas valve is now obsolete and unobtainable new. However secondhand ones regularly come up on eBay and sell for about £120. Should I buy...

Thanks for all suggestions. It turned out to be the flue. RGI dissembled it from the outside and unbelievably the supposedly professional CORGI installer had fudged it 23 years ago. To extend the length of the concentric pipes he had joined on pipes of the *same diameter* without a sleeve...

After working faultlessly for 23 years the following fault has developed: Fan comes on Sparks Pilot light comes on Main burner lights Stops sparking Burns as normal for 8 seconds or so So far all as normal After 8 seconds the main burner flames and the pilot light (as observed...