Question about Kenmore 63682 / 63684 / 63689 Microwave Oven
This could be caused by a shorted diode or bad transformer in the unit itself, diodes are generally inexpensive repairs and are fairly easy to perform. Transformers are quite a bit more expensive and can be more difficult to replace. The diode is the most common problem. To test the diode you can either use a ohm meter or a "AA" battery, short piece of wire or rolled up alluminum foil, scotch tape and a flashlight light bulb, to use the bulb technique simply dismantle the flashlight until you can easily access the 2 connectors of the bulb (one located at the bottom of the bulb and the other being the metal bulb casing) then take the twisted up alluminum foil and tape one end to one end of the battery ensuring the is a good connection, then tape the other end of the alluminum foil to the metal casing of the light bulb, after these steps have been performed, remove the diode from the microwave completely so all u have in your hands is the diode (they are usually connected with a flat terminal and a screw), if 2 identical flat terminals are used, be sure to make a small diagram of how the diode came out (if the white line on the diode is connected to the microwave transformer, be sure to install it the same way, improper installation can cause more damage!) now that you have the diode out simply touch one end of the diode to the battery and the other end to the untaped connector of the light bulb, if the light comes on, reverse the diode, if the light is still on when reversed the diode is short, if the light doesn't come on when reversed the diode is fine, current will only pass one way through a good diode and will pass through both directions if its bad, and in very rare cases the diode will not conduct in any direction. if the diode is fine I would have to suggest taking it into a service center or considder buying a new one as other parts can be in the $70-$160 range. hope this helps.
Posted on Sep 30, 2009
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Posted on Jan 02, 2017
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