Why does my treadmill only run one speed?
My ProForm Crosswalk Treadmill 490 LS model number 29161.0 has started to go full speed the minute you put the red key in slot, it is NOT the console. One day I went to use it and the minute I put the key in the slot the machine turned on and went 12 miles an hour. The only thing that would shut it off was to pull key back out of slot. It did this consistently so I then assumed it would be the comp. console. I ordered a new one and didn't even install it, just tried the key in the slot and same thing happened. What else would control that?
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