Checked over Combi Oven unit, found chemical tubes ran the wrong way and one unit had two degreaser lines and the other had two rinse aid lines. flushed lines and ran correctly and ran chemical pumps by them selves and tested okay. ran clean mode and unit gone through clean mode with no errors. will check back in a week to see if issue was resolved. **Non Warranty Issue** **Travel Charges Billed on wo# 205754**