My gas oven flame (by 3 users)

the flame failure device( FFD) may have malfunctioned,not allowing full volume of gas through to the burner.This is a safety feature, preventing full gas pressure to the oven straight away.

If it is a Flame Failure Device malfunction ( now termed Flame Supervision Device) then as long as you have a flame the FFD/FSD control will be over-ridden if you leave the oven on a high setting (say Gas Mark 7) for about 10/15 minutes. Any malfunction should temporarily correct itself and you will be able to cook safely at the correct temperature but this will probably be a requirement every time you want to use the oven. The FFD/FSD is a CORGI required component and therefore very important from a safety aspect so I called in a CORGI registered plumber to give me a quote. The quote was nearly as high as the cost of a new oven so I just bought a new oven with a warranty.