Our faithfull old Potterton netaheat 10-16 was working OK this morning, now it goes through the start-up cycle, fan runs, then the gas / ignition fires and it immediatly shuts down! What can I check for? What has most likely gone wrong? Can anyone advise? thanks. Dave

Dave, December 2008

see my post http://www.howtomendit.com/answers.php?id=212956 and check each stage. It relates to the Mk1 - the Mk2 is different - it does away with the MVV. Hope it helps

Algynon, February 2009