Washer displays SUD or SD, excessive suds in drum, extended rinse and drain times.

Safety first: Do not open the door mid-cycle if the drum is full of hot, soapy water.

Step-by-step:

• Allow cycle to continue: The washer will attempt to clear suds by adding rinses and extending drain time. Let it run.
• Run extra rinse: After the cycle, run an additional rinse/spin with no detergent to remove remaining suds.
• Check detergent: Ensure you are using only high-efficiency (HE) detergent and follow Whirlpool’s recommended dosage, often much less than a full cap.
• Inspect drain: If SUD appears frequently, check the drain pump filter and hose for partial blockages that can trap suds.
• Clean washer: Run a monthly cleaning cycle with a washer cleaner tablet to reduce residue buildup.

When to call a technician: If SUD appears even with minimal HE detergent and a clean drain system, the pressure sensor or control may be misreading suds and require professional diagnosis.