Some time oven heat and some time not

I M Working On The Whirpool Gas Range,all I Realized The Some Clicker Work And Open The Gas Valve And Its Lit.but Some Time It Click But Gas Valve Does Not Open,and Also Some Time It Does Not Click At All.what Part Could Be The Wrong If Someone Could Help Me,broil And Bake Doing Same Thingneither Is Working Properly

According to your description the first failure suspect is the spark module (#5 on the diagram).

  • The part number for the spark module is AP3672576

Here are the breakdown diagrams and Replacement parts for WHIRLPOOL SF389LEKT0 | AppliancePartsPros.com

Gene.