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Had a problem with mine not spraying, took ot apart and the heater for the solution was plugged with scaling, cleaned it up and works the very best now. As far as clean water going directly into the collection tank, sounds like the little hose may have a break or a leak in the vacuum hose.
I had the same thing happen to mine. I looked at the hose in the water tank and the screen at the end if the hose was slimy and clogged. I took the screen off and cleaned it up, put everything back together and it works like new again. Only 2 screws and a screen.
Pumps are a very common problem on these units. check pump belt first and make sure spray jets above the brushroll are not clogged. Most likely have to replace the pump. If you need me to walk you through this or need parts let me know.
Clogging of the pump that sprays water/cleaning solution is very common in Hoover and Bissell Steam Vacs. Try running a cycle of 1part vinegar or CLR to 3 parts warm, distilled water through the vacuum pumps. The heads get clogged with soap and the water pumps get clogged at the opening of the flash heater due to minerals in hard water. If you want to extend the life of your steam vac, don't use the heater unless you are using distilled water. This can get expensive, so I recommend not using the heater.
After the last use did you run a FULL tank of HOT water throught he machine to clear the lines and the pump? If not the soap has clogged one of the two. If it is the lines simply remove them (one at a time is less confusing) clear them and all is good. If it is the pump (white L shaped object back left corner of machine as you face it) you will have to go to a local vacuum repair shop and order the part.
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.
I have an 8920 ProHeat 2x as well with the same issue - no spray at the rollers. Seeing that the hand tool worked I checked the finger switch for continuity and it was good. Turns out the red spray heads that clip into the unit just under the water tanks were the culprit. I popped those off and ran a paper-clip through them from the front. I must have contaminated the fresh water tank while emptying the grey tank. Works better than ever now, just thought I'd share what my issue turned out to be.
If I may! In most cases the heater is clogged. It might be clogged with soap that has harden over time. You need to take the handle apart. You will see a metal box(thats the heater) besides the wires there are two tubes connected to the heater. remove the tubes but label or watch which tube goes where. now turn the heater upside down. there are 6 screws on the side and 1 in the middle. remove them carefully. the 6 on the side have a small gaskets under them..you don't want to lose them. the 1 in the middle has no gasket, now the bottom plate of the heater can be taken off (there is a gasket with that plate ...be careful . you will now see the long channels inside the heater and need to clean it. the holes where the tubes where connected have to be clean also but carefully. the metal is soft.so it bends. now put it all back. hope this helps. if you want to keep this from happening.the best way is to run clear water after you are done.this will remove any soap in the machine which will harden after the machine drys out. hope I helped .
and to mr. reddevil6 I am learning lots from you. Thanks
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.
My Bissell is quite fussy. Sometimes I have to wiggle and push down the tank before the water will start to flow. The water doesn't flow properly if the soap container is low - I fill it with water when rinsing.
It has a viewport with a red cross that turns when the water flows. Sometimes just removing that and the white filter below (and putting them back) makes it go.
Mine is easy to take apart - 6 screws in the base unit and the top comes off. There are two water tubes going into the handle hinge under where the water tank goes - very easily squished or damaged. Last time the water stopped flowing, I ran it with the cover off and just fiddled around with the tubes and away it went.
Maybe it is spraying soap only. The water flows up through the handle to the finger valve and heater. Some people say the heater in the upright/handle gets plugged. I haven't had that apart, but it should be easy to bypass the heater.