What do these codes mean when I start up my treadmill?

Hi all, I have an older keys 8800 treadmill. When I power it up 2 codes pop up on the digital display. They are usually different each time the unit is turned on. Today the codes were 873 & 3278. Where can I find out what exactly these codes mean? Keys is no longer in business and the manual for this model does not have that information. Thanks!


  • Those aren't codes, something is wrong with the upper console. That part is NLA
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