Error code · Siemens

E:79 · Intelligent dosing system pump blocked

The pump of the intelligent dosing system is blocked. First, clean the detergent dispenser. If the fault persists, contact customer service.

Washer-dryerCaution — Know When to StopFixLens verified

Safe first steps

  1. Unplug the washer-dryer from the power outlet to ensure safety before starting any cleaning.
  2. Remove the detergent dispenser and clean it thoroughly to remove any blockages.
  3. Check the pump area for any visible obstructions or debris that may be blocking the pump.
  4. Reassemble the detergent dispenser and plug the washer-dryer back in. Run a short cycle to check if the error persists.
  5. If the error E:79 still appears after cleaning, do not attempt further repairs and arrange for a service visit.

When to stop

  • Stop if you see water leaking from the detergent dispenser area — risk of electric shock.

Likely cause

The pump of the intelligent dosing system is blocked. First, clean the detergent dispenser. If the fault persists, contact customer service.

Verification

Reviewed by: automated manual extraction

Verified against Siemens WN54G2A0EU technical documentation

FixLens publishes its own structured technical logic verified against Siemens WN54G2A0EU documentation · last verified April 22, 2026.

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