Dishwasher (bought new in Oct. 2014) completes some or all of cycle, but ends up stopping with clean light blinking steadily. I ran the service diagnostic cycle and got one error code, 6-6. Followed service flowchart, checked incoming water temp (110F) and found no connection problems. Ran next load only after running sink water to full hot, still got blinking light indicating problem, but dishes are clean. OWI appears clean and intact. Flowchart suggests replacing OWI at this point if resistance is high in "temp. sensing circuit." Have multimeter, but not really up on circuitry tests. Is replacing the OWI a good bet (not an expensive part).
Two final things--
1. service diagnostic cycle doesn't seem to advance through all steps; just goes back into standby with no service cycle error codes at end.
2. APP website doesn't recognize this model number when I enter it to search for parts.
Ideas for my next move?