Washer-dryer combo displays F08 and may overfill, underfill, or stop during fill.

Safety first: Unplug the unit and shut off water supply. Avoid contact with any exposed wiring.

Step-by-step checks:

• 1. Check for overfill: If the drum is overfilled, manually drain via the pump filter and do not run the unit until the pressure system is checked.
• 2. Test heater to ground: Disconnect heater wires. Using a multimeter on the highest resistance range, measure between each heater terminal and chassis ground. Any measurable continuity indicates a shorted heater that must be replaced.
• 3. Inspect pressure switch and hose: Follow the steps described under F05 to ensure the pressure hose and air dome are clear and the switch operates correctly.
• 4. Wiring inspection: Trace the heater and pressure switch wiring back to the control board. Repair any damaged insulation or burnt connectors.
• 5. Replace faulty component: If heater is shorted, replace it. If pressure switch fails continuity tests, replace it. If both test good and wiring is intact, the main control board may be defective.