Little green machine will not spray cleaner

SOURCE: my little green machine won't spray the solution but it will pick

We had the same problem. After dissassembling the whole machine we could not find a clog or any other obvious problem. The manual suggests priming the pump by putting the solution reservoir in and out a few times. This did not help much. What did work was to raise the unit up a few feet above the trigger while depressing the holding the spray trigger. (That is, use gravity to fill the tube.) After solution was flowing freely, we turned the machine on and it seems to spray fine again.
Hope this helps

SOURCE: will not spray

The heater is probally clogged. Remove the upper housing and locate a rectagular shaped object in the middle of machine. Remove six bottom screws and clean with stiff brush, clear all lines then run 3 tanks of hot water trhought he system to clear it.

SOURCE: Bissell ProHeat Carpet Steam Cleaner stopped spraying.

The problem was a clogged heating unit which is located in the lower handle. There are two clear hoses going up the inside of the left leg of the lower handle that go to the heater and to the in-line water switch all within the lower handle. I unplugged the metal heating unit water lines and electrical connections (label the connections as you take them apart if you have a hard time remembering things...there were seven connection in all be it water and/or electrical). Removed the heat unit out and then removed the 6 screws holding the heater cover. Inside was a white powdery pasty debris (lime deposit ?) and the water path was clearly blocked in four different places. I cleansed the water trough with a little water and soft toothbrush and several toothpicks then reassembled. If you need new washers go to Orchard or ACE hardware. Take the old rubber washers(they are red) with you for comparison. I didn't need new washers...I just gently cleansed them. I immediately ran clear water through the machine and actually cleaned the carpet with a water rinse only. Will go back and finish the carpet the right way tomorrow. I had only used my machine three times before this happend over a three year period. A friend told me to always rinse it two maybe three times with clear water after using it and before storage. This took me exactly 42 minutes to disassembly and reassemble. Cost savings is several hundred dollars since I have a 5 bdrm house and would need a professional cleaner to do the small dirty traffic lanes all around the house.

SOURCE: Bissell carpet cleaner

I have owned three Bissell cleaners and experienced clogged hoses each and every use. Do not put carpet cleaning solution in these machines. They are not designed correctly. If you have a tough spot, just use some liquid dishwasher detergent and a scrub brush. It will get almost anything out! Try it! Then, use the Bissell with hot water only to clean up any detergent residue.
Have a great day! Bissell Sucks!