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Replace pump in Bissell 1680 big green cleaning machine

Apparently the pump has failed.  No cleaning fluid is pumped out when pump switch os on.  Problem is I can not remove the cover and switches assembly to get at the pump.  I see no screws or other fasteners.  How to remove??  Does it just snap on or what?? Thanks Bob

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  • sheldonrl Oct 15, 2008

    If you can't answer a simple question like this why should I pay for your your premium assistance??

  • Anonymous Jan 24, 2009

    the motor is going bad on my Bissell Big green cleaning machine. How do I gain access to motor?

  • davek123 May 10, 2009

    Same issue with 1680. How to get at motor/pump?

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SOURCE: Bissell Big Green Machine Model 1672 will not pump cleaning liquid

have a Bissell Big Green 1672, the older canister model. Went crazy trying to figure out how to get to the pump. Finally figured it out. The top green "shell" covers the motor & pump and is separate from the "grey" plastic housing. Using a screw driver, insert it between the small gap between the top "shell" and the housing. If you look at it with it laying down on the top, you will see the small 1/4" gap. Gently pry in between the two and work your way around. It will start to lift up and then you can easily work your way around and it will pop off exposing the motor and pump. Note that the wires to the on/off & pump switches will sill be attached to the top shell. If you take them off note where they came from and make sure they are all on when you put the top back on. I have had my Green Machine for years, what a work horse! To bad they don't make them anymore, the new ones that replaced them just don't have the same durability and power as the older Green Machines.

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1672 BIGgreen Wet/Dry Vacuum: my bissell 1672 big green machine has stopped spra...


Refer to the discussion at the other thread: http://www.fixya.com/support/t3309646-pump_motor_sounds_like_running_but_not

You will need to remove the top domed lid to access the working parts. Refer to http://www.fixya.com/support/t3543424-two_top_sections_held_together

Examine the water lines to ensure they are attached to the pump. If you feel you can do so without shocking yourself on any exposed electrical connectors, try disconnecting the inlet hose. Buy a two-foot section of the same size hose from the hardware store and connect it to the pump inlet. Plug in2_bing.gif the unit (be careful!!!) and use the pump switch to see if it draws water. Then try reconnecting the inlet and connect the outlet to the new hose to see if the pump pulls water from through its suction tube and will pump through the new hose.

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I have the Bissell Big Green model 1672 and have used it for many years. Recently, the fan or suction blower began to emit a burnt smell so I shut it off. I had difficulty figuring out how to dissemble the top motor unit. Here is what I found.

Don't pry up on the very top disk, which is an air outlet. It will only break off and won't allow access to anything. If you do break it off, drill holes through the four posts and use stainless steel screws to re-attach the disk to the plastic posts it sits on.

Now, beneath the air outlet is the rest of the motor unit. The motor unit consists of three pieces. The bottom piece is the lid to the waste water receptacle. It is concave pointing down (lid shaped). The top piece is the domed lid for the motor unit. The middle piece is a flat plate between the other two pieces. The top of the flat plate (inside the unit) has mountings for the suction fan and the pump.

The flat plate is bolted to the bottom piece and the top piece (domed lid) is simply snapped down to the flat plate. If you take a flashlight and look inside the area where the AC cord is stored, you can see that the domed lid is a distinct piece from the flat plate. The model 1672 and 1680 (or 1680-3 if you wish) are nearly identilcal.

To access the internal parts in the motor unit, you cannot pry between bottom piece and the the flat plate because they are bolted together. But you can remove the top domed lid. To remove the domed lid, position the motor unit in front of you with the switches at 9 o-clock. Three snap-downs which attach the domed lid to the flat plate are at 1 o'clock, 2:30, and 7 o'clock. Wedge a flat bladed screwdriver or pocketknife between the edge of the domed lid and the flat plate at those locations and the lever the domed lid out and then up. The domed lid will separate from the bolted-together flat plate and bottom piece.

Wiring from the switches remain attached to to the electrical components. You will see that the AC cord has white, black, and green wires. The green ground wire connects to the fan ground at the 9 o'clock position. The white power connects to upper connector on the pump and also to the fan at the 7:30 position. Black feeds both switches on model 1672 and then a black wire runs from the correct switch to the bottom connector on the pump or to the connector on the fan at the 1:30 position.

Model 1680 has a third switch which feeds power to the floor sweeper. It has its own connection to the green ground and white power and goes through the third switch to connect to black.

If you need to replace the pump or the fan, shop around carefully. The pump, for example, can be found for $30 plus shipping2_bing.gif, but some will want to charge you $80.

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Here is how to disassemble the top motor unit. Don't pry up on the very top disk, which is an air outlet. It will only break off and won't allow access to anything. If you do break it off, drill holes through the four posts and use stainless steel screws to re-attach the disk to the plastic posts it sits on.

Now, beneath the air outlet is the rest of the motor unit. The motor unit consists of three pieces. The bottom piece is the lid to the waste water receptacle. It is concave pointing down (lid shaped). The top piece is the domed lid for the motor unit. The middle piece is a flat plate between the other two pieces. The top of the flat plate (inside the unit) has mountings for the suction fan and the pump.

The flat plate is bolted to the bottom piece and the top piece (domed lid) is simply snapped down to the flat plate. If you take a flashlight and look inside the area where the AC cord is stored, you can see that the domed lid is a distinct piece from the flat plate. The model 1672 and 1680 (or 1680-3 if you wish) are nearly identilcal.

To access the internal parts in the motor unit, you cannot pry between bottom piece and the the flat plate because they are bolted together. But you can remove the top domed lid. To remove the domed lid, position the motor unit in front of you with the switches at 9 o-clock. Three snap-downs which attach the domed lid to the flat plate are at 1 o'clock, 2:30, and 7 o'clock. Wedge a flat bladed screwdriver or pocketknife between the edge of the domed lid and the flat plate at those locations and the lever the domed lid out and then up. The domed lid will separate from the bolted-together flat plate and bottom piece.

Wiring from the switches remain attached to to the electrical components. You will see that the AC cord has white, black, and green wires. The green ground wire connects to the fan ground at the 9 o'clock position. The white power connects to upper connector on the pump and also to the fan at the 7:30 position. Black feeds both switches on model 1672 and then a black wire runs from the correct switch to the bottom connector on the pump or to the connector on the fan at the 1:30 position.

Model 1680 has a third switch which feeds power to the floor sweeper. It has its own connection to the green ground and white power and goes through the third switch to connect to black.

If you need to replace the pump or the fan, shop around carefully. The pump, for example, can be found for $30 plus shipping2_bing.gif, but some will want to charge you $80.

Jun 28, 2009 | Bissell 1672 BIGgreen Wet/Dry Vacuum

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I recently did a Google search an owners manual for my inlaw's Bissell. I just googled your 168-3 and found a manual, hope it is the right one,

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I have the Bissell Big Green model 1672 and have used it for many years. Recently, the fan or suction blower began to emit a burnt smell so I shut it off. I had difficulty figuring out how to dissemble the top motor unit. Here is what I found.

Don't pry up on the very top disk, which is an air outlet. It will only break off and won't allow access to anything. If you do break it off, drill holes through the four posts and use stainless steel screws to re-attach the disk to the plastic posts it sits on.

Now, beneath the air outlet is the rest of the motor unit. The motor unit consists of three pieces. The bottom piece is the lid to the waste water receptacle. It is concave pointing down (lid shaped). The top piece is the domed lid for the motor unit. The middle piece is a flat plate between the other two pieces. The top of the flat plate (inside the unit) has mountings for the suction fan and the pump.

The flat plate is bolted to the bottom piece and the top piece (domed lid) is simply snapped down to the flat plate. If you take a flashlight and look inside the area where the AC cord is stored, you can see that the domed lid is a distinct piece from the flat plate. The model 1672 and 1680 (or 1680-3 if you wish) are nearly identilcal.

To access the internal parts in the motor unit, you cannot pry between bottom piece and the the flat plate because they are bolted together. But you can remove the top domed lid. To remove the domed lid, position the motor unit in front of you with the switches at 9 o-clock. Three snap-downs which attach the domed lid to the flat plate are at 1 o'clock, 2:30, and 7 o'clock. Wedge a flat bladed screwdriver or pocketknife between the edge of the domed lid and the flat plate at those locations and the lever the domed lid out and then up. The domed lid will separate from the bolted-together flat plate and bottom piece.

Wiring from the switches remain attached to to the electrical components. You will see that the AC cord has white, black, and green wires. The green ground wire connects to the fan ground at the 9 o'clock position. The white power connects to upper connector on the pump and also to the fan at the 7:30 position. Black feeds both switches on model 1672 and then a black wire runs from the correct switch to the bottom connector on the pump or to the connector on the fan at the 1:30 position.

Model 1680 has a third switch which feeds power to the floor sweeper. It has its own connection to the green ground and white power and goes through the third switch to connect to black.

If you need to replace the pump or the fan, shop around carefully. The pump, for example, can be found for $30 plus shipping2_bing.gif, but some will want to charge you $80.

Jan 08, 2009 | Bissell 1672 BIGgreen Wet/Dry Vacuum

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I have replaced this pump before, and had the pump "seize" again. I hooked the output of the bissel to a siphon pump to pull a vacuum while i had the input hose (with the little filter) submerged in a bucket of water. After i got the pump started, I submerged both the inlet and outlet hoses (after the trigger handle) into a bucket of warm water and turned the spray switch on to circulate clear water through the whole deal

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2 Answers

Bissell Big Green Machine Model 1672 will not pump cleaning liquid


have a Bissell Big Green 1672, the older canister model. Went crazy trying to figure out how to get to the pump. Finally figured it out. The top green "shell" covers the motor & pump and is separate from the "grey" plastic housing. Using a screw driver, insert it between the small gap between the top "shell" and the housing. If you look at it with it laying down on the top, you will see the small 1/4" gap. Gently pry in between the two and work your way around. It will start to lift up and then you can easily work your way around and it will pop off exposing the motor and pump. Note that the wires to the on/off & pump switches will sill be attached to the top shell. If you take them off note where they came from and make sure they are all on when you put the top back on. I have had my Green Machine for years, what a work horse! To bad they don't make them anymore, the new ones that replaced them just don't have the same durability and power as the older Green Machines.

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