Washer-dryer combo shows E13; drying cycle ends quickly with clothes still wet

Safety first: Unplug the appliance before cleaning internal sensor contacts.

• Locate sensor bars: Inside the drum, identify the two metal strips (Roborock moisture sensor bars) usually mounted near the front.
• Clean sensor surfaces: Using a soft cloth and a bit of white vinegar or mild detergent, thoroughly clean the bars to remove fabric softener residue and lint. Dry completely.
• Check wiring (advanced): Remove the front panel to access the back of the sensor bars. Ensure the wiring harness is firmly connected and not damaged.
• Test operation: Run a timed dry and then an automatic dry cycle. If E13 persists, the moisture sensor assembly or control board may need replacement.