Flames too blue/yellow or causing soot?
- Check that the air intake guide is fitted correctly.
- Check that the restriction slider is fitted correctly.
Flames are suffocating or lacking of air
If you see dancing flames on the burner seeking air, check that there is no blockade, obstruction or any form of leakage in the flue gas exhaust/ air inlet.
Flame picture restless
An indication of too much draught. Check:
- The adjustmenets of the appliance damber and air inlet guides
- The vertical flue length allowed (<12m)
- Window glass not mounted gas tight