The repair man could not figure it out - $99 for nothing. He thought it was the soap dispenser leaking so I went through the test he asked and that was to put water in the dispenser until it washed with clear water. No soap, plenty of water and goes to LO FL withing 10-15 minutes and starts to drain. I checked the inlet valves just in case....they are clear with a little discoloration on the bottom of the filter plastic and of course...water is getting in the tub. ??

You need to replace the inlet valve one of the valves is sticking allowing water to drip in the unit and not allowing out fast enough to satisfy the control which is why you are getting the low flow error.