Arrived at location on 8/16/21 - Arrived, stated giving wash probe error intermittently. Checked over unit, is reading correct temp of 170 on wash tank, run racks through unit, rinse comes on and meets min of 180. Checked probes and temp probe for wash tank, looks okay. Moved wiring at probes, no errors. Removed top cover. Checked wiring at control board, moved wiring and unit stopped heating and gave wash probe error. Moved wiring and unit returned to normal operation. Shut off, disconnect J12 harness at control board, found pins not together properly, bent pins in connector in to seat better into J12 connection on control board. Reinsert connection. Turn on, move wiring and unit continues to work now. Will quote harness for J12 connection.