Question about GE Spacemaker JVM1640SJ Microwave Oven

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My GE microwave model #JVM1640WB microwave stopped heating and is making a humming noise. Everything else about it is fine. Light, keypad, turntable, all work normally. Just no heat. How do I install a new magnetron in the microwave? Can you give me step-by-step instructions? Thank you!

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Hello, installing is quite straight forward if you know what youre doing. BUT, be very careful of the voltage in the capacitor even when its off,it is lethal! When you change the magnetron it is advisable that you also change the diodes. Again make sure that the capacitor is fully discharged, by switching the microwave off, unplugging it, and discharging the capacitor with an insulated screwdriver, it will be noisy. Next unsolder the old diodes and fit the new ones(check their polarity). Replace the magnetron and when all looks good,switch it on. If it works, good, if not there could be a power supply problem. 9 times out of 10 its the magnetron. Good luck.

Posted on Mar 27, 2011

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