Cooks fine, but fan & carousel run slow and light is dim
These symptoms began just when I moved it to a new apt. When I first observed the malfunctioning behavior, I quickly turned it off for concern of danger or damage to the unit. I took it to a certified repair facility and everything tested fine. My landlord "tested" it and said it cooked a bag of popcorn in 2 minutes, so doesn't think there is a problem with the apt. wiring or the oven. He has done nothing further in spite of my insistence the problem has not been resolved. Sure enough, it does cook normally and I am using it now with the continued odd behavior. I notice that when cooking on lower settings, the light, fan, etc. come back to life normally when the power intermittently shuts off. Other appliances in the apt. (lights, fans, etc.) mimic this same behavior. Any insights would be greatly appreciated.
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Re: Cooks fine, but fan & carousel run slow and light is...
It sounds perfectly normal.
A microwave generally draws about 13 amps or more when cooking at full power. That's a considerable amount.
This current draw will actually "load down" the power line, resulting in a small but measurable drop in the voltage.
The decreased voltage means the light will be dimmer and the motors for the fan and turntable will run a bit slower.
BUT if you ever have _chronic_ flickering, dimming or brightening lights in your home, it could be the result of a bad connection on the neutral, etc., which can lead to a very dangerous condition.
Once in a while is okay, but if it happens a lot, your landlord or electric company should examine the lines.
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The problem maybe the magnetron, or the inverter board if 7 years old or less, and possibly the keypad control board, by the time you add parts and labour cheaper to replace the microwave oven in the long run.
likelihood the Magnetron has failed, or perhaps even the Power Supply is
faulty. You need to have it serviced by a reputable service centre/man. Ensure
you get a firm "Quote" before proceeding, and remember these days the
cost of repair can equal or exceed the price of a new one.Yes they are right.
Hi, I am not sure of the cost concerning the control board, however, it does sound like a control board problem, or a door switch problem, I would need to see the specific unit diagram to know for sure, but many microwaves, not all, but many, have a door switch related to that part of the circuit, usually the fuse would blow at that point, but there again, it depends on the circuit. I would suggest you get the unit checked soon however. Hope that helps somewhat, and thank you.
I also have the Sharp Carosoul oven, symptoms - fan runs, controls are fine but the turntable stopped turning and it did not heat. It was not the switches, fuse, but in fact a sagging door that misaligned with the door switches. The true cause was a warn top hinge. As a temporary fix, I adjusted the bottom hinge (3 screws underneath), straightened the door, and now it works again.