E19 error, oven may show symbols for steam or humidity functions and then abort the program.

Safety first: Turn off power and allow the oven to cool. Steam components can be very hot.

• Clean steam paths: Remove and clean any water tank or steam generator components according to the Hisense manual. Ensure inlets and outlets are not blocked by scale or food debris.
• Locate humidity sensor: On steam-assist models, the sensor is often mounted in the cavity wall or near the steam outlet. Inspect for contamination and gently clean with a dry cloth.
• Check wiring: Inspect the sensor harness for damage or loose connectors.
• Replace sensor: If cleaning and wiring checks do not resolve E19, replace the humidity sensor with a Hisense-compatible part.
• Control board: Persistent errors after sensor replacement may indicate a faulty control board.