A slight humming noise is normal. When operating your Precision Cooker, the system will produce a humming sound due to the motor, impeller and cooling fan in operation, but it shouldn’t be bothersome or too loud, if this is the case something may be wrong (in this case please contact support@anovaculinary.com)

A grinding noise is caused when the stainless steel skirt is loose. To fix this just 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.

If that didn’t fix it, the grinding noise might also be due to a slightly bent stirring shaft. If this is the case, unscrew the clear plastic end cap on the bottom of the device and gently push the impeller until it is centered.

Your pump has formed a water vortex like the one you hear when you are emptying out a bathroom sink or tub. Simply 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.

If you are hearing a gurgling or whooshing noise then 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.