No water spraying out

I have a bissell 9200...wont spray from either wand or carpet head?

Problem; No water or solution
After taking the unit apart TWICE trying to determine the problem I finally realized that the rubber washer on the bottom of the solution tank had come off the tank. It was stuck in the drain - I pulled it out of the drain and put it back on the bottom of tank. Now the tank could sit down properly on the drain. As soon as I put the tank back on the machine, bubbles came up through the solution in the tank indicating that solution had drained into the system as it was supposed to.
I started up the machine and it worked like new again.