Whirlpool washer — Error Code F08

What it means

The F08 error code on your Whirlpool washer notifies you that the central control board has detected either a foam-filled tub or an issue with the water level pressure sensor. The pressure transducer, which gauges water levels by measuring air pressure within the dome hose, will report inaccurate levels when bubbles interfere. This triggers an automatic suds reduction cycle, where the machine pauses to let the foam settle. If the bubbles persist or the pressure switch hose remains blocked by detergent buildup, the control board stops the cycle and displays F08 (often flashing alongside 'Sud' or 'Sd'). While using non-HE (High Efficiency) detergent or over-pouring HE soap is the most common culprit, recurring F08 codes can signal mechanical trouble. A clogged drain pump, a pinched or obstructed pressure hose, or a failing water level pressure switch will send faulty voltage signals to the CCU (Central Control Unit), tricking the machine into believing a suds lock exists even when the drum is empty.

Likely Causes

1. 1
   Excessive Detergent (Suds Lock)

   Using standard detergent instead of HE, or simply using too much HE soap, creates a foam barrier that confuses the pressure sensor and initiates the suds reduction cycle.
2. 2
   Clogged Pressure Hose

   Lint, detergent residue, or other debris can obstruct the air dome hose linking the tub to the pressure switch, trapping air and resulting in incorrect water level readings.
3. 3
   Faulty Water Level Pressure Switch

   The transducer itself can suffer internal failure, causing it to transmit incorrect DC voltage data to the main control board regardless of the actual state of the tub.
4. 4
   Restricted Drain Pump

   A partial blockage inside the drain pump or the coin trap prevents water and suds from draining efficiently, leading the CCU to trigger an F08 or Sud error.

How to clear / reset

To clear the F08 error temporarily, let the washer finish its automatic suds reduction cycle. If the code remains, press the POWER button once to clear the screen, then press it again to restart the unit. If the drum is filled with suds, run a 'Rinse & Spin' cycle or a 'Clean Washer' cycle using an Affresh tablet to flush the system. Always verify that you are using HE detergent and dosing it correctly based on the load size. Should the code reappear immediately while the tub is empty, the pressure hose or sensor will likely require manual cleaning or replacement.

Common replacement parts

FAQs