Bosch · Washing machines · Error code

E33 Washing machine error code

What E33 means on Bosch washing machines, what Bosch says causes it and what to do, with the models it is documented for.

Source: Bosch error code page, retrieved 2 Nov 2026 Verified

All Bosch codes
In short

On Bosch washing machines, error code E33 means: Excess foam has been detected: Reduce the detergent dosage. Recommended action: Excess foam has been detected: 1. Bosch documents it for Bosch washing machines generally.

What E33 means

Reduce the detergent dosage. Particularly in soft water areas and when washing only slightly soiled washing, the amount of detergent should be reduced accodingly.

What Bosch recommends

Excess foam has been detected: 1. How much detergent should I use in my washing machine?

Which appliances this applies to

Documented by Bosch for its washing machines generally, not for a specific model.

Questions people ask

Frequently asked questions

What does Bosch E33 mean on a washing machine?

Excess foam has been detected: Reduce the detergent dosage. Particularly in soft water areas and when washing only slightly soiled washing, the amount of detergent should be reduced accodingly.

How do I fix Bosch E33?

Excess foam has been detected: 1. How much detergent should I use in my washing machine?.

Sources

Where these facts come from

Every fact on this page was read from the manufacturer's own product page or document at the address shown, and is labelled with how far it has been checked. Last updated 3 November 2026. Read how we source data, or report an error.