Hi guys,

Have a few of these late model raymond walkie model 8400 (replaced 112) here at work, but no service manual or anything to work with,

Can anyone clue me in what code 223 might refer to?

checked all the obvious stuff, not seeing anything unusual,

switch truck on, goes through self check okay, activate deadman, code 223 goes off, all drive and lift functions disable,

any ideaS?