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Lock the end of the shaft opposite the pump and then turn of the impeller counter clockwise looking at the pump. The remainder is simple nuts and bolts.
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Booster pump output low/defective, rinse nozzles clogged, wash tank level sensor soiled, moisture in sensor tube, hose kinked or not water tight
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booster tank level sensor defective/disconnected, water inlet strainer is soiled, booster tank vent is clogged, anti siphen flap
This is per their tech manual.
I have found in some cases that the impeller on the fill motor is plastic and can become disconnected from the motor shaft.
Remove the rear motor cover, you will need pliers and a 7/16 open end wrench. The opposite end of the impeller has a shaft that has to be secured by the wrench. The shaft has a notch on each side, it could be behind the two small springs that hold the spinning connection. There is a bigger shaft version that needs just a small end cap taken off and that will expose the shaft to be held and that is a bigger wrench. Once the shaft is secured, you may need pliers to turn off the impeller. Turn counter clockwise. Remember to be careful, it's plastic and well used. Don't forget the seals to put it back together.
For an impeller really stuck on the motor shaft you need to pull the motor thru-bolts and remove the rotor with the pump still attached from the stator. Lock the rotor in a vice and turn the impeller off with a large set of channel locks or a large strap wrench.
1. Disconnect the booster pumpset from the power supply. 2. Take the pump frontcase off by taking the bolts holding it. 3. Take the pump impeller from the shaft. This is either bolted or screwed to the shaft that is actually an extension of the motor. 4. Carefully take the mechanical seal off from the shaft. 5. Unbolt the pump backcase, from the motor, 6. Now you have the motor separated from the pump.
Does it have a century motor? If so, remove the shaft cover plate at the rear and try rotating the shaft with a very thick slotted screwdriver or substitute until it turns fairly easily. Often some mild oxide develops around components that just needs to be disturbed.
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