P
PlumbSafe
I have this Vaillant Breakdown come in today, was serviced by an engineer yesterday, all was fine before his visit, custard says he said he adjusted it because he thought the burner was noisy.
What it does is on DHW it takes a couple of attempts to ignite but it works fine when it does.
when you want heating it lights after a couple of attempts but seems to be really low, then it cuts out after a couple of seconds and goes to lockout with the fault code F28.
I noticed an old gas valve and box at the bottom of the airing cupboard, so this may have happened before.
Any Ideas.
What it does is on DHW it takes a couple of attempts to ignite but it works fine when it does.
when you want heating it lights after a couple of attempts but seems to be really low, then it cuts out after a couple of seconds and goes to lockout with the fault code F28.
I noticed an old gas valve and box at the bottom of the airing cupboard, so this may have happened before.
Any Ideas.