Bissell ProHeat Protech BS-7920F Troubleshooting Manual page 16

Solution 2:
Check the black and red tank gasket on the SmartMix bottle cap. Is the
gasket lodged in base of unit or has it been lost?
Fill the Tank- in-Tank Assembly with hot (not boiling)
water and place in unit
Remove the SmartMix bottle from the unit
Set the SmartMix dial to "Water Rinse/Carpet Protector"
Turn the unit on
Press the trigger and flip the SmartMix knob back and forth from "Water
Rinse/Carpet Protector" to "High Traffic" 4 times. Stop on 'High Traffic' setting
Firmly install the SmartMix bottle and continue to press the trigger for 1minute
**Note: If the units stopped spraying, turn off the unit, press trigger for 30
seconds, turn unit back on, and it should spray again.
Does the unit spray shampoo now? (You should see bubbles)
No, refer to an Authorized Service Center
** NOTE: If consumer is in the middle of cleaning the carpet and unit is still not releasing shampoo
replace the shampoo in the SmartMix bottle with water, set SmartMix knob on "Water
Rinse/Carpet Protector" and add 120ml Bissell formula to the water in the Tank-in-
When finished cleaning fill the tank-in-tank with water only and flush out the system.
This can be done by using the machine to clean a flat hard surface such as concrete.
Prepared by Monique Lania
No Yes
Reattach gasket by pushing the red rounded
portion over the black lip of the SmartMix bottle
or order new gasket if appropriate, problem
solved
Yes, problem solved
16
Call Servicing Guide ProHeat Protech 7920F
Tank.