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What is this A/C electrical component? 700 1988

posted by  rduke on  Sat May 22 03:14 CST 2004
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OK, I got mine fixed and this is real easy and works well. Best of all it is cheap. I posted the pictures on my ISP because they are high resolution (the files are big). Here is the schematic:

http://home.comcast.net/~wduke6/diode4.jpg

First. Make the part shown below using a diode bridge. The bridge actually has 4 diodes in it but since we only need one, I cut off two of the terminals with my dremel. The wire you see in the picture will be the connection to ground.

http://home.comcast.net/~wduke6/diode1.jpg


Then I used some pliers to rip the old diode out. It is attached with a soft rivet. You can also see that my clutch wire was already spliced around the old diode (my original mistake).

http://home.comcast.net/~wduke6/diode2.jpg

Note that in order for the diode bridge to sit flat on the old diode bracket, I had to rotate the 17mm bolt a bit so that it would mount flush. Turning the back bolt will rotate the diode mounting bracket easily.

Next I used a wire tap to attach the clutch wire to the notched terminal on the diode. That is a cathode terminal. I used a screw and locking nut on the bottom side to attach the diode. A screw with a star washer would be best. The compressor is already grounded so this screw grounds the short wire that was shown in the first picture.

http://home.comcast.net/~wduke6/diode3.jpg


Note: depending on the screw size you may have to drill the mounting hole a bit larger on the compressor.

Good luck

R Duke






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