Unpleasant Smell During Use

Symptoms

• Musty or sour odour from the machine during operation
• Smell is noticeably stronger near the roller or exhaust vent
• Odour persists even after self-clean cycle
• Machine smells fine when first switched on but worsens as it warms up

Likely Causes

1. Cleaning roller has not been self-cleaned promptly after use and residue has fermented
2. Dirty water tank was left full or not rinsed between uses
3. The machine was stored damp with the roller attached
4. Incorrect cleaning solution used — bleach or heavily scented products can degrade the roller material and produce an odour
5. The clean water tank contains stale water from a previous fill

Step-by-step Fix

1. Empty the dirty water tank completely and rinse it under a running tap. Fill it with clean water, reattach, and run a manual self-clean cycle (hold the power button for 3 seconds while docked).
2. After the self-clean cycle completes, remove the roller. Rinse it under warm water, squeeze gently, and allow to air dry fully before reattaching — at least 2 hours.
3. Empty and rinse the clean water tank. Refill with fresh water only — do not leave water sitting in the tank between uses.
4. If the odour is severe, soak the roller in a solution of 1 part white vinegar to 3 parts water for 20 minutes, then rinse thoroughly.
5. Wipe down the roller housing channel inside the machine with a damp cloth to remove any trapped residue.
6. Allow all components to dry before reassembling and testing.