If the burner on a gas range is not lighting, it could be caused by a dirty burner or a defect in one of the following parts below.
WARNING! Before attempting to work on any appliance, make sure that all power (electricity) and utilities (water and gas) have been turned off and/or disconnected on the appliance. Read this before you start any repair.
Clean the Burner
Try cleaning around the spark electrode to make sure that electricity can properly flow and ignite the gas from the burner. Make sure burner holes on the burner itself are not clogged. Use a metal pin to clean the ports of grease and debris from cooking and spills.
Allow the parts to dry completely before reassembling and trying to ignite the gas burners again.
Spark Ignition Switch
The spark ignition switch provides voltage to the spark electrode igniter when the knob is turned on to light the burner. The spark electrode then clicks and sparks to ignite the gas mixture flowing to the burner head and creates the burner flame. If one or more of the spark ignition switches is defective, then electricity will not reach the spark electrode and the burner won’t light.
The Spark Ignition Switches can be tested for continuity.
Spark Electrode Igniter
The spark electrode igniter creates a spark which ignites the gas flowing from the burner producing the burner flame. Over time, this part can weaken. A clicking sound will be heard, but no flame will be produced. Remove the burner cap and check the igniter for cracks or breaks, or just replace the part.
The spark module provides power to the spark electrodes which clicks and lights the gas at the range’s burners.
Sometimes a faulty wire will prevent the proper voltage from flowing from the spark module or the spark ignition switch to the spark electrode. Check for loose or burnt connections and replace any faulty wires.