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Convection Steam Oven (Touch Control) Descaling Instructions

Topics:

  • How to descale a Convection Steam Oven (CSO) with touch controls?
  • How often must a CSO be descaled?
  • "Boiler scaled up—please descale" message appears

Answer:

Cleaning Procedures

Lime deposits are a natural result of steam creation and will slowly build up inside of the unit's boiler and water lines. Depending on water hardness and usage, the unit should be descaled every 6-18 months to remove build-up. Descaling more frequently will not harm the unit.

Before descaling:

  • Durgol® is the only recommended descaling solution at this time. Other products and substances can cause permanent damage to the unit. For more information, including purchasing instructions, see Convection Steam Oven Descaling Solution.
  • Descaling requires emptying and filling the water tank several times throughout the cycle. Plan to be present for the entire descaling cycle.
    • Descaling takes about 45 minutes if only one rinse cycle is needed. If the unit determines more rinse cycles are necessary, then the time needed will increase up to an additional 30 minutes.
    • For safety reasons, the descale program cannot be interrupted or stopped once it is started.
  • Descaling does not clean the oven interior. Descaling removes mineral deposits from the mechanical parts of the unit. It is not necessary to remove racks or pans for descale cycle. See also, Convection Steam Oven Cleaning Information.

To descale the unit:

  1. With the oven off, touch SETTINGS.
  2. Use the arrows to select Descale, then touch ENTER. “Add 1 pt (0.5 L) descaler—and touch ENTER” appears on the display.
  3. Touch WATER and remove the water tank from the unit.
  4. Pour the entire Durgol® Swiss Steamer descaling solution into the tank. Do not dilute.
  5. Install the tank and touch ENTER.
  6. After approximately 30 minutes, “Pour away descaler— Add 2 pt (1 L) water” appears on the display. Remove the water tank, turn on the sink faucet, and pour the descaling solution down the drain.
    • Failure to dilute descaling solution before discarding may discolor sink and drain.
  7. Fill the tank with warm tap water and install the tank. “Descale appliance—1st rinsing cycle” appears on the display. After approximately 45 minutes, “Pour away water—Descaling completed” appears on the display.
  8. Depending on the level of soil in the rinse water, the oven determines whether additional rinse cycles are necessary. Follow instructions on the display.
    • Rinse cycles vary in length from approximately five minutes to 20 minutes, getting shorter as they repeat.
  9. Once the rinse cycles are complete, remove, empty, and dry the water tank. Wipe all stainless steel surfaces.

If the above steps do not resolve the issue, no troubleshooting advice is available. Contact Factory Certified Service to schedule an appointment for repair.

Note that:

  • Descaling takes about 45 minutes if only one rinse cycle is needed.
    • For safety reasons, the descale program cannot be interrupted or stopped once it is started.
    • If the unit determines more rinse cycles are necessary, then the time needed will increase.
    • Depending on the number of additional rinses, the descale process may last an additional 30 minutes.
  • It is not necessary to rinse the unit more than the descale program requests, but it can be done by starting another descale cycle.
  • "Descaling aborted" appears in the display if the unit is turned off in the middle of the descale cycle.
  • Even if power is disconnected to the unit, Descale mode will restart and the full descale cycle will be run after power is restored.
  • The amount of time required for the descale process may vary based on the amount of mineral buildup in the unit.
  • Wolf suggests running the cleaning process immediately after the solution is put into the unit.

Recommended Accessories

Additional Resources

For CSO units with a knob control, refer to Convection Steam Oven (Knob Control) Descaling Instructions.

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

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