Whirlpool washer — Error Code F08

What it means

The F08 error code on a Whirlpool washer indicates that the main control board has detected an oversudsing condition or an anomaly with the water level pressure sensor. When excessive suds are present, the washer's pressure transducer (which monitors water level via air pressure in the dome hose) reads a false water level. This triggers the machine's automatic suds reduction routine, pausing the cycle to allow the bubbles to dissipate. If the suds do not clear, or if the pressure switch hose is physically clogged with detergent residue, the control board halts the cycle and flashes F08 (often alternating with 'Sud' or 'Sd'). While the most common trigger is using non-HE (High Efficiency) detergent or overdosing HE detergent, persistent F08 codes can point to a mechanical failure. A blocked drain pump, a pinched or clogged pressure hose, or a faulty water level pressure switch will continuously send erroneous voltage signals to the CCU (Central Control Unit), mimicking a suds lock even when the tub is empty.

Likely Causes

1. 1
   Excessive Detergent (Suds Lock)

   Using non-HE detergent or too much HE detergent creates a foam lock, tricking the pressure sensor and triggering the automatic suds reduction routine.
2. 2
   Clogged Pressure Hose

   Detergent residue, lint, or debris can block the air dome hose connecting the tub to the pressure switch, trapping air and causing false water level readings.
3. 3
   Faulty Water Level Pressure Switch

   The transducer itself may fail internally, sending incorrect DC voltage data to the main control board regardless of actual tub conditions.
4. 4
   Restricted Drain Pump

   A partial blockage in the drain pump or coin trap prevents water and suds from evacuating fast enough, causing the CCU to flag an F08 or Sud error.

How to clear / reset

To temporarily clear the F08 error, allow the washer to complete its automatic suds reduction routine. If the code persists, touch the POWER button once to clear the display, then touch POWER again to restart the washer. If the tub is full of suds, run a 'Rinse & Spin' cycle or a 'Clean Washer' cycle with an Affresh tablet to flush the system. Ensure you are only using HE detergent and measuring based on load size. If the code returns immediately on an empty tub, the pressure hose or sensor requires manual clearing or replacement.

Common replacement parts

FAQs