Washer-dryer combo displays E8 and will not heat during drying; clothes remain wet and cold.

Safety first: Unplug the unit before accessing the rear or internal heater components. Heating circuits can retain heat after shutdown.

• Check drying settings: Confirm that a heated drying program is selected and that the dryness level is not set to "air only" or similar.
• Clean lint and vents: Remove and clean the lint filter. Inspect the internal air ducting (if accessible) for heavy lint buildup that could cause overheating and blown safety devices.
• Access heater assembly: Remove the rear panel to locate the dryer heater housing. Inspect wiring for burns or loose connections.
• Test continuity (advanced users): Using a multimeter with power disconnected, check continuity of the heating element, thermal cutoff, and high-limit thermostat. Replace any open components with compatible NewAir parts.
• Replace faulty NTC sensor: If the element and thermostats are good, the temperature sensor (NTC) on the heater duct may be defective. Replace it if readings are out of specification.
• If unsure: Because heater circuits involve high current, consider professional service for diagnosis and replacement of the heater assembly or control board.