If there is spark please do not switch on unless you have confirmed the fault. It is possible that the Magnetron is leaking and sparking to the ground. As you have mentioned it was stored, it is quite possible that insect can get into the oven and create soft spots. When you switch on these will create a short and make the voltage jump and in the long run damage the magnetron. So Remove cover after disconnecting , check for dirt/moisture in the cabin, if so wipe clean and dry, check the magnetron and area clean and use an jet air to clean off. Now switch the microwave power on and use a cup of water to test. If you notice any sparks shut off as the magnetron or the main HT capacitor can be faulty. Replace with same type. If not check the waveguides within the cabin for food particles that can burn and spark, check for rust that can corrode and spark when the ceramic paint has worn out. If there is heating without any issues, you can use the microwave safely
Click on replacing waveguides: http://www.espares.co.uk/advice/microwave/a/5/1146/how-to-replace-a-microwave-guide-cover.html
Also check the belt below the turntable as it can produce this jerking movement due to friction of the drive, poor motor or belt.
Hi,
Here is a tip that will help you to figure out what is wrong with your Microwave Oven.... Basic Microwave Oven Troubleshooting Tipsheatman101
Hi,
Here is a tip that will help you to figure out what is wrong with your Microwave Oven....
Basic Microwave Oven Troubleshooting Tips
heatman101
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