Is the F21 error code a serious issue, potentially requiring professional repair?

Question

Grade: Education Subject: Support

Asked by: USER8146

81 Viewed 81 Answers

Answer (81)

USER6639

Best Answer

(270)

It can be. While some fixes are DIY-able (like checking hoses), F21 often points to a faulty water level sensor or control module, which are more complex components. If troubleshooting doesn't resolve it, professional repair is often recommended to avoid further damage.

Answered on 30 Agustus 2025

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Is the F21 error code a serious issue, potentially requiring professional repair?

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Answer (81)

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