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Error code · Steam Oven

Viking 24-Inch Combi Steam Oven Message “DESCALE NOW”: boiler is scaled

On the Viking 24-inch Combi Steam/Convect ovens VCSO244 and DCSO244 (2005 to 2010), such as the VCSO244SS and DCSO244SS, DESCALE NOW means mineral scale has built up in the boiler and it needs descaling. Hard water…

Low risk · DIY check OK
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Code
DESCALE NOW
Appliance
Steam Oven
Brand
Viking
Warranty
30-day workmanship

What DESCALE NOW means

On the Viking 24-inch Combi Steam/Convect ovens VCSO244 and DCSO244 (2005 to 2010), such as the VCSO244SS and DCSO244SS, DESCALE NOW means mineral scale has built up in the boiler and it needs descaling. Hard water leaves scale on the heating surfaces, which slows steam and can shorten the life of the boiler. The message is a maintenance prompt. The oven can usually keep working for a short time, but the descale cycle should be run soon.

Common causes of DESCALE NOW

  • Hard water leaving mineral scale in the boiler
  • Many steam cycles since the last descale
  • Filter or water treatment that is not keeping up with the water supply
✓ One safe check you can try

1. Let the oven cool. 2. Empty the water tank and refill it with descaling solution mixed as the oven instructs. 3. Start the descale function and let it finish without interruption. 4. Rinse the tank, refill it with fresh water and run the rinse cycle. 5. If DESCALE NOW stays after a full cycle, call us.

! Why to stop there
  • The descale cycle is the owner task for this message
  • Skipping it shortens boiler life
  • A visit is useful when DESCALE NOW stays after a full descale
Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.
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DESCALE NOWDESCALE NOW questions
How often will I see DESCALE NOW?

It depends on your water hardness and how often you steam. Hard water brings it sooner. Running the descale cycle when asked keeps steam quality and boiler life in good shape.

Can I ignore it for a while?

A short delay is usually fine, but scale builds up and slows steam. Plan the descale soon, and use only the descaling product the oven calls for.

The message stays after descaling.

Then the cycle may not have finished, or the boiler needs a closer look. Call us, and we will quote the price in writing before work, with a 30-day workmanship warranty.

Book a visit

Still unsure about DESCALE NOW?

A technician diagnoses it on site and gives you the price in writing before any work starts.

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