I couldn't find it but I have the owner's manual - for models 25800-25801-25803-25804. When I called Sears, they indicated it was purchsed in 2007 if that helps.
OK - Will head down to the basement to check again.
Didn't find it on the unit but found the Operations Manual and it is written on the front - A7DH45B2A*A-R
That number is XXXXX in as model number. The next line says serial no. - JS(might be a 5, rather than S) 764658 252W, purchased June 2005.
Yes, Sears Kenmore Pump System Dehumidifier
In behind the tank, says type 129-25804
I entered that before I read your suggestion above. I'll wait to hear from you next before trying what you said above.
Machine seems to be running normally - these codes just keep alternating on the panel.
Should I still try the 'reset' procedure you described above, or just leave it if running OK?