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Microwave Madness = Appliance Advice needed (lemmy.one)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

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#Solved

Our microwave has just begun to show a failure mode. With no settings on the timer/modes when we close the door we hear a 60-cycle hum.

We put a coffee cup with water in and closed the door but did not push any button and noted the hum. The water got warm, for the exposure of 20 to 30 seconds, the water got the expected level of warmth we think.

Is there any danger if we leave the door open? (No hum with the door open)

Could the Magnatron be running at a higher output than it is supposed to when the door is closed but the microwave is not under the control of its built-in circuitry?

Of course, there is no danger of the microwave doing anything other than heating stuff (No mad science going on)? We know that microwave ovens work by making the water molecules vibrate faster.

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[–] [email protected] 2 points 1 year ago

@[email protected]

The unit is now unplugged and we will be replacing it soon. We have gotten good use out of this one and it has earned its rest. (LOL) I will keep an eye out for the feature you mentioned "Inverter Technology" thanks for the heads up.

I had tried the power cycle because the timer part of the microwave is a small computer, perhaps a reset would bring it back to normal operation. No, it did not. It seems perhaps the relay that the timer opens and closes to energize the magnetron is probably stuck closed.