Customer Questions and Answers for Grease Range Hood Microwave Filter 6-1/2" X 12-3/16" X 3/32" by Whirlpool

Hello Terry, You should first test the oven temperature sensor WB24X25056. The oven sensor should have a resistance of 1090 ohms at 77 degrees and would add 2 ohms for every 1 degree of temperature increase. If this is good, the issue is most commonly the ignitor WB13X24924. This is tested by amperage. It should read 3.2 to 3.6 amps or the gas valve will never open. If the ignitor is not getting voltage you could have a bad control WB27X32205.