I have a GE microwave that runs, but has stopped heating. One morning it made a brief, half-second unusual hum, and then continued to run making its normal sound, but stopped heating anything. I had the magnetron replaced two years ago, and it is not making that growling sound at all. There was no burning smell to indicate a transformer outage.
I ordered a diode and capacitor because they seemed like the two most likely suspects. The online tutorials always say to put the wires on the proper terminals, but don't say if the terminals are directional. I took note of which wires connected where. My question is: Is there a polarity or direction to the capacitor? There are no markings such as +/- on the capacitor. My new replacement capacitor is not the same make as the original, so how do I know which side to connect a given wire to?
Thanks in advance,