Glow Worm Swift Flow 80

[tdesnos]

Hi there,

Above mentioned boiler. Pilot light ignites, but won't stay on for more than 30 sec to a min. Replaced thermocouple. Same fault still. Obviously, can't get the main burner to fire. Fan runs. 24.6v at the gas valve. I believe it's the gas valve (honeywell)

suggestions?

Thanks guys/ gals

 

[tdesnos]

ok, replaced the gas valve today and got it sorted. But, she turned off the ch and hot water a few later and now the main burner fires up, but it's not working at full rate, infact the ch pipes don't feel anything other than luke warm. The pump is working. I had the promblem immeditely after swapping the gas valve and adjusted the burner pressure and it seemed to sort it. Also, the pressure gauge was slowly creeping up higher and higher

help...