Inspect the plug for the oven behind the unit. Push it into the wall socket completely. Check the circuit breaker for the kitchen and flip it to the "on" position if it is turned off.
Inspect the gas supply valve and turn it to the "on" position if it is turned off or is partially open.
Inspect the pilot light and light it according to your stove instructions if necessary.
Inspect the range burners for clogging and debris. Insert a pin into the burners to remove dirt.
Lift up the gas range top on its hinges.
Unscrew the burner assembly and insert a wire brush inside to remove clogs. Insert a pin into the burner valve ports attached to the burner dial to remove debris.