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I have a 1994 Pannasonic Microwave Model T994sf . The microwave does not heat and somtimes turns off after 20 - 35 seconds. I chnged the fuse and it still does not heat up. Can you help?

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When the cost to repair exceeds the cost to replace, it isn't worth repairing. That Microwave is > 14 years old and chances are the Magnetron tube or the filamant power supply is failing after all the use. If I were you, I would consider buying another Microwave to replace it.. Hope that helps..

Posted on Sep 01, 2008

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Mst likely a blown fuse. You''ll need to unplug the unit, remove the outside cover and follow the line cord and you should find the fuse.

Replace it with the EXACT same value that was labeled on the original fuse. You'll probably be able to find a replacement at any Radio Shack store or hardware store.

Replace the cover and plug the unit back in. Hopefully nothing was damaged and the unit will play again.

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