Washer-dryer combo shows F10 and may not detect correct water level or may stop filling prematurely.

Safety first: Disconnect power and be prepared for minor water spills when removing hoses.

Step-by-step checks:

• Clean the air trap: Locate the air dome on the side or bottom of the tub where the pressure hose connects. Remove and clean out detergent residue and debris.
• Inspect pressure hose: Look for kinks, pinholes, or splits. Replace the hose if damaged; even small leaks can cause incorrect readings.
• Test the pressure switch: As with F05, verify continuity changes with applied air pressure.
• Check harness: Ensure the connector at the switch and at the control board is secure and free of corrosion.

When to replace: Replace a faulty pressure switch or damaged hose. If F10 remains after these repairs, the main control board may be at fault.