The gas on my cooker keeps going up and down when its on, and feels like the power of the gas goes, then it comes back at full strenth
Please csn you tell me why this is???
The model num is...050551109

Ellen, October 2008

If its the oven only it will be the FSD device not getting warm enough.The flame will be getting dragged away causing it to drop,then for a few seconds it will warm again pushing the valve open again.

Tony S, October 2008

Years ago I had a similar problem with a gas fire. Flame would slowly decrease to almost nothing and then suddenly flare up again - perhaps five second cycle.

It turned out to be what the gas man called, "water in the service" - We listened to the supply pipe to the meter and could hear gurgling as the gas pressure forced the water up the pipe and then the column of water collapsing when it was too heavy to be supported.

They pumped the water out. No cost to me. Listen to your meter when the cooker is on.

Peccavi, October 2008