Both lpg ovens ignite the low flame, and after a few seconds flicks into a larger flame, but when I turn the control knob to increase the oven temperature/flame control, there is no response, the flame stays the same and there fore you cant control the heat in the ovens, could there be a problem with the control knobs.
Also are there meant to be cover plates that cover the big gap around oven burners?

Dell, December 2013