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Sharp Microwave Unusual Problem

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I have a sharp r 8560 microwave 1986 vintage it has been a great microwave recently it stopped working I

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Old 08-09-2012, 11:44 AM
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Default Sharp Microwave Unusual Problem
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I have a sharp r 8560 microwave 1986 vintage it has been a great microwave recently it stopped working
I opened it up and found the thermal fuse on the magnatron was open ( i replaced the fuse )
the microwave turns on and the clock and display all function when the door is closed the turn table and the light go off ** but the microwave continues to run ** ( this was what evidently caused the thermal fuse to blow ? I unpluged the wire from the relay that goes to the magnatron and I can hear the relay click
( so the problenm is the relay is being energized and causing the magnatron to contiune to run ) any sugestions as to what to look for ?

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Old 08-21-2012, 11:23 AM
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Problem Solved : I Traced It To The Magnatron Relay The Points Were Fused Together ( Could Not Locate Sharp Relay Any Where ) It Is A Proprietory Part : ( Located A Heavier Duty 20 Amp Relay From Digi-key ! (( Great Folks )) 6 Bucks Drlivered To My Door In 2 Days Including Shipping : ) Had To Reconfigure The Old Relay Base To The New Relay As The Coil Pins Were Different ( No Big Deal With Some J.b.weld ) It Is Back Working 100% Hopefully For Aniother 26 Years L.o.l
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