Question about Bissell 7901-1 ProHeat Scotchgard Upright Wet/Dry Vacuum

3 Answers

Cleaner suddenly stopped working

Little red spinner on top won't spin, water and soap won't dispense.

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  • STRECK12 Dec 14, 2007

    little red spinner on top want spin

  • Anonymous Feb 20, 2008

    little red spinner on top won't spin, water and soap won't dispense.

  • Anonymous Jun 22, 2008

    Carpet cleaner suddenly stopped putting out water. Little red wheel only pins occassionally

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Based on the other solutions I read, I also traced the problem to clogged input/output ports to the heater. I hadn't used the cleaner for about 2 years and the ports were blocked by calcium and mineral deposits. I took the manifold cover off the bottom of the heater and carefully reamed the ports out with a finishing nail. I then cleaned the ports and manifold with Lime-Away to dissolve any other deposits. I put it back together (with no parts left over!) and it works fine.

Posted on Jun 26, 2008

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The main problem I experienced was, as several of these reviews mentioned, the unit failed to spray solution on the carpet after using it only once.

Being mechanically inclined, I decided to investigate myself. I checked three areas of the unit:

Base - I removed the base cover so I could see the lines and the pump. Everything looked ok, the lines had fluid in them but I could see that fluid was not moving through them when I pressed the spray lever on the handle. The small spray heads were not blocked.

Handle - Opened up the handle to check if the spray lever was somehow disconnected inside and wasn't really activating the pump. Everything there looked fine.

Center (where the heater is) - I found the real problem here and it may be the reason for many of the reviews that mentioned that "the spray stopped working". Inside the lower part of the handle, where the red "heating" light is, there's a small heater which the water lines pass through. Even though my unit was used only once, I could see through the clear lines that the outlet from this heater was blocked. I removed the line from the end of the heater unit and used a paper clip to clear away what looked like a lump of minerals blocking the output. Once it was cleared, the unit started spraying again like brand new.

The bottom line, I think, is that, if you have hard water in your area, when that water goes through the heater, it causes some of the minerals to come out of solution, block the heater output and prevent it from reaching the spray heads.

Posted on Oct 30, 2007

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I also found that the Heater wqas the problem. It is the outlet port on the heater that gets clogged.

Posted on Jan 15, 2008

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Does water squirt out of the hose nozzle, if it does, then check the heater inside the handle asm. Make sure that where the tubes hook up to it are not clogged. If water doesn't squirt, check for the seal at the bottom of the tank, it needs to be on the tank, not in the hole, this is for the soap bottle, there is a seal on the bottom of it as well. The flow indictor cap is leaking air or maybe is too tight. If you had the top cover off, make sure that the tubes are routed right so as not to get pinched when the cover is put back on, the smart mix knob should be in the water setting and that the piston is on the bottom of the smart mix knob. Pump is bad. Try running a mix of vinegar and water to see if that unclogs the lines. Is the top cover and the base tight together in the back, sometimes the top breaks loose and it will raise up and it can't spray, just re-fasten it down.

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Water and clearen not coming out.


If the modle is an old modle the heater could be blocked,or if it a new modle try taking of the of the handle and ad a small shim to the bottom of the handle plunger to make it a little bit longer ,the plunger might not be reaching the valve,
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when you put the cap back on make sure its not to thigt and the spinner move freely, if the suction is poor make sure the red lint filter in the clean water tank is clean

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