I have received a magnetron for my non-functioning microwave oven. I cannot tell from the diagram where it goes! Can you help me?
To access the magnetron, you will need to pull the microwave down from the installation and remove the cabinet of the microwave. Once the cabinet is removed the magnetron will be on the right side of the cavity. Make sure that you discharge the capacitor before doing any repair on the unit.
I bought this microwave manufactured on aug 10th 2010. I installed it and now in may of 2014 it wont heat. It just hums and the table moves around. What is wrong and should not this microwave last more than4 years? I am not happy.
Answer Hello Ken. You most likely have a "high voltage" side malfunction. Transformer, diode, magnetron, Capacitor. You will need to be extremely careful if you decide to test the components with a multi meter, Very high residual voltage is present, so make sure you remove power to the microwave and short across the terminals on the capacitor. The magnetron should have a reading of less than 1 ohm resistance across the two terminals, and an "open" circuit between each terminal and chassis ground. The diode/rectifier should have a resistance reading in one direction only, no resistance, or resistance in both directions indicate a faulty diode. The primary winding on the trans former should read approximately 450 Ohms resistance, the secondary winding should read 80 ohms resistance, and the filament transformer should read 100 ohms resistance. If all the readings are proper and in range, replace the magnetron.