Good, I have a Whirlpool microwave that does not heat, I checked the high-voltage fuse, diode, magnetron, transformer, capacitor, resistance, relay, door switches, passes the current from the card to the transformer, the turntable motor and still does not heat What could it be?

hello, did you check if the magnetro is not grounded? when do you say resistance? What do you mean? Do you hear the activation of the magnetron in that short moment? Check if the high circuit generates it ... by removing the connector from the valve socket ... removing it a little always with a good well insulated clamp to avoid taking risks ... if the generation of the high is verified then magnetron ... already that there is not much secret .. if the supply arrives to the traffic from relay and both the diode and the fuse and capacitor well. (Did you verify how you say this is not short or mass?) .. then the microwave should be generated ..