Whirlpoo Dryer won't heat, tested most parts

Hi all, I’ve got a whirlpool dryer that runs, but does not heat up. I suspected the usual: thermal fuse (tested it and had cont. , shorted it too as a test), replaced main & sub coil, replaced heating element…and nothing. I don’t see a glow, don’t hear a click…nothing. I’ve got the drum out, covers off and I’m running it with the door switch actuated. The unit just runs and never fires up…

I’m wondering if it’s the timer not sending a signal…any ideas anyone??? Thanks !

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