A
andrem
hi currently working on an ecotec plus 824 combi. have 24mbar pressure at the gas valve and a new pcb on the boiler. the boiler fires and works on central heating and fires on hot water. however after a while when the boiler tries to fire again it locks out on f28 I am getting the correct voltage at the gas valve. This all leads to the gas valve however its the irregularity i cant understand. There is a spark on all occasions. Any ideas before I try a new gas valve? :cry_smile: