Bulbs are fine, I am sure it is the latch, how do I check to make sure before I buy the part.
Answer Hello Phoward1. If the bulbs are good, the switch can be tested for continuity. It should read closed with the door open. Also, test for 12 Volts coming to the bulb. If it is not there, replace the transformer 9760587 on the unit. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html