Bissell Proheat model 7901-1 does not spray solution?

does it spray through the hand tools? If it does then it sounds like the heater is blocked- the soap that bissel uses tends to coagulate in the heater or the loines going into the heater- take the lower handle apart, there you should see a rectangular metal box with wires going to it- that is the heater. disconnect the plastic tubes and get like some aquarium hose- attach to either line connection- see if you can blow through it- if you can't then you need to open it (there are 7 screws holding the lid on) using a paper clip or coat hanger see if you can clear the port (!! IMPORTANT!! do NOT push the paper clip more than about 3/4 inch in- you may see the clog right away OR take the paper clip and follow the tracks- have something to wipe the soap clogs onto- when the track is clear, and you can blow through both connectors- then reassemblt the heater, and put the lines back on it, then reassemble the lower handle, and it should be fixed

Scott Pranke
December 2010

Pipe,
Any help on how to change that pump? I'm only changing mine because the toothed gear broke and it's all connected but I can't find any "how to" on that.
Thanks.
Lucky

Lucky
January 2008

This is Pipe again. I changed the pump on this unit which corrected the problem

Pipe
January 2008

After seeing your messages i've given up and taken it in for repair. I've been told that the heater needs replacing and this is a common fault on these machines. the fluid passes through the heater and after a few uses it clogs it up. the repair man said he needed to open it up to clean, but that then renders the heater no longer sealed and it needed to be replaced at a cost of £78, or £58 2nd hand part. Nevertheless, after 2-3 uses again the part will go again. it's not something you can take apart and fix yourself. i've taken the stupid thing down the tip and hired a machine from my local shop for £20 instead. i've very angry about it, i expected many years of use out of the machine and only used it 3 times before it died.

s.a.
December 2007

gee ! i hope you have better luck than me. i cant figure this machine out. mine wont spray either, it sounds like most everyone with these pro heats are having this problem. i like my unit greately, but only when its working. can you please email me and send me in the right direction, if you find a solution. thanks Mike M. nwtf@triton.net

Mike M.
December 2007

http://www.bissell.com.au/images/IncludeContent/Service_Center_Help/Upright_Deep_Cleaner_Repair_Guide.pdf

royski
December 2007