when the convection oven is on it makes a loud noise
when the convection oven is on it makes a loud noise, otherwise it works fine
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Most Frequent Causes for Microwave is loud or noisy
Cause 1
Magnetron
The magnetron uses high voltage, high current DC power to generate the microwave frequency that cooks the food. Under normal circumstances, the magnetron emits a low hum. However, if the magnetron is damaged or nearly burned out, it may begin emitting high-pitched sounds or growling noises. If the magnetron is noisy, this indicates that the magnetron is nearing the end of its life or might be defective. A defective high-voltage diode can also cause the magnetron to be loud. Before replacing the magnetron, first test the high voltage diode. If the diode is not defective, replace the magnetron. (Warning: The microwave oven can store a lethal amount of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Due to the high running voltage and the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. Only a licensed technician should replace the magnetron.)
Cause 2
Exhaust Fan Motor
To determine if the fan motor is defective, remove the fan motor from the microwave and try turning the fan blades by hand. If the blades do not turn freely, replace the fan motor. If the fan blades do turn freely, use a multimeter to test the motor for incoming power and for continuity. If the motor has power but won’t run, replace it. If the motor does not have continuity, replace it.
Cause 3
Stirrer Motor
The stirrer is a metal blade which slowly rotates inside in the microwave. As the stirrer turns, it deflects the microwave energy randomly throughout the microwave. As the stirrer motor wears down, it begins to make grinding noises. To determine if the stirrer motor is worn out, check to see if voltage is getting to the motor. If the motor has the proper voltage, but is noisy or won’t turn, replace it. (Note: Proper voltage can be determined by reading the label on the motor. Because the stirrer motor is a geared motor, the shaft will not spin freely.)
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It’s probably the fan. The fan is the only moving part in your oven. Should be a fairly simple fix if you can find parts.
To fix,, I am very mechanical minded., dp a lot of home repair..
Iam a 90 yr old female! Iam not fixing the fan .Do you realize how ridiculous this sounds., all ppl are not men!!!!
jhannes personally I will not work on a microwave myself, they are just to dangerous.
Most Helpful Answer
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Since it only happens when using convection, that pretty much limits the problem to the convection fan. Before replacing it, try a few drops of light oil into the shaft bushings. Small morors like this use oilite bearings which are porus bronze, that retains oil but they do dry out. I like Triflow. I had the same problem with the convection fan on my toaster oven. It was making a lot of noise but after a few drops it was as good as new.
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2 Comments
This is the first time I am using it and I was a little concerned when you hear the fan going it clings and clangs. It is a Hamilton Beach and I believe the number is 31240 it is a convection and toaster oven I have a chicken in there right now and the temperature gauge says 375 and for the probe it said 180 but it also has a loWith an arrow underneath the 180 is it normal please answer me
by Linda
Convection + grill mode is very noisy in 5 days old IFB 30l oven. Is that works like that or problem in the oven
by Rajesh M