Galvanic corrosion on front loading washer spider CONFIRMED
I'm surprised that after 20 years of every manufacturer of front loading washing machines making the same design flaw by engineering a large battery in the form of washer tub that nobody has taken the three minutes it took to confirm the galvanic action.
See in my photos the before, during, after of my spider repair post galvanic destruction.
I used steel brush then sand blasting. I used JB Weld to hold the post in place then poured about 20oz of clear epoxy to make a solid puck that is also non conductive.
Notice in my photos I include the fact that some detergent paste as the battery electrolyte is generating 0.444v that's a lot of random voltage to be generating current 24/7.
The ions that generate that current come from the break down of the aluminum.
Notice that contrary to the original poster who is incorrect in his assessment, not only is voltage generated and measured, there is absolutely galvanic corrosion at the end of all the arms.
I suspect that there are multiple paths including the center bearing post as the cathode perhaps why the main corrosion is near the hub (but could be other reasons)
I'm just here to confirm with absolute certainty that galvanic corrosion does in-fact take place in all of these machines at any time there is an ionic liquid or paste touching both the drum and spider.
