What A80 Means
A80 reports a failure of the turbidity sensor - the optical sensor in the sump that judges how dirty the wash water is, and lets the machine decide whether a load needs more rinsing. The manual asks a technician to inspect the sensor contacts and run a calibration in service mode before replacing the part.
Common Causes of A80
- A greasy or clouded optical window in the sump
- Poor contact at the sensor connector
- A turbidity sensor that has genuinely failed
🔧 One Safe Check You Can Try
Pull the filter assembly and wash it, then wipe the sump floor around the sensor window with a soft cloth. Grease film over the optical window is a genuine cause of this alert and is entirely within an owner's reach.
⚠ Why You Shouldn't Go Further Than That
- Switch the machine off at the breaker before reaching into the sump, and let the water cool, since the element sits in the same space.
- Abrasive cleaning of the optical window scratches it permanently, after which no calibration will restore a usable reading.
- The manual calls for a service-mode calibration before replacement, and a new sensor fitted without it can report just as badly as the old one.
- Filter assemblies seat on a gasket that only aligns one way, and one refitted crooked lets debris bypass the filter altogether.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.