homedics massager repair

Hi,  my sbm 300h homedics massager...............would massage to the top and start crunching and would get stuck at the top:  FIX:  three zippers tied with a thread on the inside....fish it out and cut..unzip.   clean cover outside with soap and water....there are 5 switches...three on the side  one top and one bottom; those two are safty switches, I think, any how....mine worked fine on lower button so I cut the yellow in the middle switch and connected it to the top third brown wire......now it works fine, but the lower button on controller will now only be used and it will massage the entire back..the spot still works, but the lower will not as it was bypassed and used for the top switch....notice the board was corroded, next time might try and clean it first, but this will work for me, think the processor for the full massage might be going bad as it worked erratically????   hope this helps some, please email or comment
Regards

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• #homedics
• #sbm_300h