Light all surface burners.
Turn the knob on the burner being adjusted to Lo.
Remove the knob and knob ring.
Insert a small, flat-blade screwdriver with a minimum length of 3" (76.2 mm) and a diameter of 3/32" (2.4 mm) into the opening marked below.
Simmer on dual burner
Simmer on other burners
Turn the screw to adjust the flame.
Hold the valve shaft with one hand while turning the screw to adjust with the other.
Replace the knob.
Test the flame stability.
Test 1: Turn the knob from Hi to Lo quickly. If the flame goes out, increase the flame size and test again.
Test 2: With the burner on a Lo setting, open and close the oven door quickly. If the flame is extinguished by the air currents created by the door movement, increase the flame height and test again.
Repeat steps 1-7 for each surface burner.
The product is shipped with the low flame (Simmer) setting at the lower limit. It cannot be set any lower.