Error code reference

Viking Oven Error Code DESCALE NOW

The boiler has accumulated lime scale and requires descaling.

SourceViking Combi Steam/Convection Oven - Use & Care Manual (F20427)p. 39

Diagnostic procedure

The full DESCALE NOW procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Descale the oven. If it hasn't been recently descaled, also change the water filter and then descale.

SourceViking Combi Steam/Convection Oven - Use & Care Manual (F20427)p. 39

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More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

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Where this code is documented

1 manual in the MyPros+ library documents this code for Viking oven.

Models covered by the manuals that document this code

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The full DESCALE NOW procedure

Where this code is documented

Models covered by the manuals that document this code

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