I had a no-spray issue, in the roller section only. I get a powerful spray from the tools. I narrowed it down to the solenoid valve for the sprayers by the roller brush, and replaced that with a brand new one. I also cleaned the nozzles, but they didn’t appear to be dirty. The tubing is in good shape and I didn’t see kinks; they had water in them.
This did not solve the problem. Still won’t spray on the floor.