Humming Noise:

Don't worry, this is normal! When operating your Precision® Cooker, the system will produce a humming sound due to the motor, impeller and cooling fan in operation. 

Grinding noise:

The stainless steel skirt is loose. Push the stainless skirt up into the guide groove and turn to the right until you hear a click. With the skirt secure, the noise will go away. There also might be the chance the stirring shaft was inadvertently bent. If this is the case, unscrew the bottom pump disk and gently push the impeller until it is centered.

Slurping noise:

Your pump has formed a water vortex like when you are emptying out a bathroom sink or tub. Add more water or gently disturb water with a spoon. There is no sure way to eliminate a vortex from forming due to the pump rotation but usually will go away on its own.

Gurgling + Woosh noise:

The water level in the tank is too low, causing the pump to suck air. You may also see small bubbles in your tank. Add more water and make sure the water level meets or exceeds the minimum fill line on the pump each time you operate the Precision® Cooker.

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