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Convection Steam Oven Water Tank

Answer:

Water Tank Capacity:

  • The Convection Steam Oven water tank holds approximately 5 cups of water.
  • Legacy Convection Steam Oven water tanks hold approximately 4 cups of water.
  • There is not a fill line on the water tank.

Water Tank and Lid Removal:

  • The top lid fits tightly on the water tank but is removable.
  • Pull up to remove the lid.
  • If the water tank is stuck in the opening, wiggle it back and forth while pulling out to release it.

Legacy Convection Steam Oven Water Tank:

  • The water tank in a Legacy CSO provides approximately 90 minutes of continuous steam.
    • Most modes do not use continuous steam, so actual cooking time on one tank may be longer. For example, Slow Roast uses steam but not in a continuous flow, so one tank of water may last several hours.
    • Refer to Legacy Convection Steam Oven Cooking Modes for more information on which modes use steam and when.

Convection Steam Oven Plumbed Model Water Tank:

  • In CSO plumbed models,  the home water supply provides continuous steam for specific cooking modes.
  • In CSO plumbed models, the water tank is only used for descaling. 
  • If the unit is not hooked up to the home water supply, it is possible to use the water tank for cooking if needed. The water tank will provide approximately 4 hours of steam.

Fill Water Tank Message:

  • In the event that the unit does run out of water, "fill water tank" will appear on the display screen.
  • Add no more than 2 cups of water to prevent overflow when the unit pumps water from the boiler back into the tank.
    • There is a baffle in the tank to prevent water from splashing when filled.

Remove and Fill CSO Water Tank:

Unless the Convection Steam Oven is used daily, the water tank should be emptied after each use and allowed to dry.

  1. Open the water tank door by pressing the WATER button.
    • Always use the WATER button to open the water tank door.
    • Accessing the water tank manually will damage the oven.
  2. Remove water tank lid, and fill with fresh, cold tap water. Do not use demineralized, filtered, or distilled water. Refer to Convection Steam Oven Water Requirements for more information. 
    • Lift the lid straight up to remove.
    • Mineral deposits may make the lid difficult to remove.
    • The water tank holds enough water for approximately 90 minutes of continuous steam, typically enough for 4–5 cooking sessions.
  3. Replace lid, and push water tank into its compartment and make sure it is seated firmly.
    • There is no front or back to the lid, it fits either way.
  4. Manually close water tank door.

Purchase Water Tank Replacement:

Genuine parts for Sub-Zero, Wolf, and Cove products are available by calling the Factory Certified Parts Distributor in your area. Only filters and cleaners are available for online purchase in the Sub-Zero, Wolf, and Cove Store. Other parts are not available for purchase online. Use locator to find the Parts Distributor for your area.

ModelPart Number
CSO3050, CSO2450830354
CSO30, CSO24821099

Refer to the product Use and Care Guide for further information.

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