Washer displays F09 and may have water remaining in the tub; cycle may stop unexpectedly.

Safety First: Unplug the washer and shut off water supply valves. Be prepared for water spillage.

Steps:

• Check if water is still filling: With the washer unplugged, observe if water continues to enter. If so, the inlet valve is mechanically stuck open and must be replaced.
• Inspect pressure hose: Remove the top panel and locate the pressure switch and its small rubber hose. Ensure the hose is firmly attached, not cracked, and not clogged. Blow through it to confirm it is clear.
• Check drain system: Clean the drain pump filter and verify the drain hose is not kinked or restricted. A slow drain can trigger overflow/long drain errors.
• Test pressure switch: With a multimeter and service manual, test the switch contacts while gently blowing into the port. Replace the switch if it does not change state as specified.

Final check: After correcting issues, run a rinse/spin and monitor fill and drain. If F09 persists, the main control may be misinterpreting the level signal and require replacement.