If there is no gas coming through the burner then the problem is the gas burner valve for the left front burner.
Remove control knobs and 4 screws that attach control panel to range cabinet. Pull control panel forward to remove. Set panel and screws aside.
Remove burner grates, burner caps, burners and screws. Lift cook top.
You now have access to the gas burner valve.
There are two different size of the gas burner valve used on the range. Check the plate on the frame behind the bottom drawer to find out the rating for the valve.
- The part number for the 9500 BTU's burner valve is
AP3129665 - The part number for the 11500 BTU's burner valve is
AP3129666
Here are the break down diagrams for the Whirlpool range
Model SF315PEKW1
Gene.