Washer displays F08 or F8, may fill continuously, not fill at all, or stop with water level issues.

Safety first: Unplug the washer and turn off water supply before removing the top or rear panels.

Step-by-step:

• Locate pressure switch: On many Whirlpool models, the pressure switch or analog water level sensor is mounted under the top panel near a small rubber or plastic hose leading to the tub or air dome.
• Inspect pressure hose: Remove the hose from the switch and the tub connection. Blow through it to ensure it is clear. Check for kinks, pinholes, or splits that could leak air.
• Clean air dome: Where the hose connects to the tub, ensure the air dome is not clogged with detergent residue or lint. Clean gently if needed.
• Check electrical connector: Reseat the connector on the pressure switch/sensor. Look for corrosion or bent pins.
• Test switch/sensor: For mechanical switches, test continuity across terminals while gently blowing into the port (per tech sheet). For analog sensors, resistance or voltage output should change with applied pressure (requires tech sheet and meter).
• Reassemble and test: Reconnect the hose and wiring, restore power, and run a small load to verify proper filling and draining.

When to call a technician: If the sensor tests out of spec or the control board is suspected, or if the washer is overfilling, shut off water and seek professional service immediately to avoid flooding.