Ninja foodi watr error

The WATR message appears with the Steam function or the Pressure function.

Cause 1 of 2WATR appears while using the Steam function: the water level is too low. Source: Troubleshooting Guide: "WATR" error message, Steam function, p. 23

First checkAdd more water to the unit for the function to continue.

Causes and checks

WATR appears while using the Steam function: the water level is too low. Source: Troubleshooting Guide: "WATR" error message, Steam function, p. 23
1. Add more water to the unit for the function to continue.
WATR appears while using the Pressure function. Source: Troubleshooting Guide: "WATR" error message, Pressure function, p. 23
1. Add more liquid to the cooking pot before restarting the pressure cook cycle.
2. Make sure the pressure release valve is in the SEAL position.
3. Make sure the silicone ring is installed correctly. See Remove and reinstall the silicone ring.

If the checks above do not clear it, contact SharkNinja Customer Service: 1-877-646-5288, ninjakitchen.com/support. North America. Source: Troubleshooting Guide; Warranty, pp. 23, 25

ADD POT: The cooking pot is not inside the cooker base.
LID: The LID message appears with a flashing lid icon.
SHUT: The crisping lid is open.
HOT: The unit has overheated.
ERR: The unit is not functioning properly.
PRE: The unit is building pressure or preheating while the Pressure or Steam function runs.
ADD FOOD: Sous Vide preheating is complete.
BOIL: The unit is pasteurizing the milk.
COOL: The milk has reached the pasteurization temperature.
ADD AND STIR: The milk has cooled and the yogurt cultures can be added.
DONE: The yogurt incubation time is complete.

OS401 Owner's Guide: Foodi 10-in-1 8-QT XL Pressure Cooker. SharkNinja Operating LLC. Document OS401_IB, revision MP_REV_Mv12, 25 pages, en. ninjakitchen.com. Listed on the manufacturer's support page. Retrieved 13 November 2026.

Page numbers are the numbers printed in the manual. Where this page and the manual differ, follow the manual.

Applies to: OS401. North America.
Source: OS401 Owner's Guide: Foodi 10-in-1 8-QT XL Pressure Cooker, OS401_IB revision MP_REV_Mv12
Last verified: 13 November 2026
Handbook: Ninja Foodi 10-in-1 8-qt XL Pressure Cooker in Multicookers and pressure cookers; all Ninja handbooks