Whirlpool · Washing Machine
Whirlpool Washing Machine Sd Error Code
Excess suds detected during drain
What this error means
Sd (also shown as 5d on some displays) is Suds Detected—a suds lock fault. The washer sensed too much foam during drain and extended the pump time trying to break suds. Whirlpool pauses the cycle until suds drop or you intervene.
How SD is detected
When SD appears on a Whirlpool washing machine, the control board has confirmed that water did not leave the machine within the programmed drain window. On Whirlpool WFW560CHW, Whirlpool WFW9620HW, and similar variants, the drain pump runs for a fixed interval—often three to seven minutes on washers and dishwashers—while a pressure switch or turbidity sensor verifies the tub or sump is empty. If water remains, the cycle stops to prevent spin with a full tub or overflow on the next fill.
Most SD calls are resolved without parts: cancel the cycle and run rinse & spin with no detergent on an empty drum. Restricted drain paths mimic pump failure because the impeller spins against a blocked hose or filter. Document whether the pump hums audibly during the drain step; a humming pump with no water movement points to a clogged filter or kinked hose, while silence may indicate a failed pump motor or loose wiring at the harness.
After clearing blockages, run a short cycle and listen at the drain hose for steady water flow. If SD returns on the next load with a clean filter and straight hose, measure resistance at the pump motor connector per the service manual for your model before ordering a replacement pump assembly.
Common causes
- Non-HE detergent or more than the recommended amount creating foam
- Liquid fabric softener poured into the detergent tray instead of the softener cup
- Cold water wash with detergent that needs warmer water to dissolve
- Partially blocked drain path trapping sudsy water in the tub
Step-by-step fixes
- 1Cancel the cycle and run Rinse & Spin with no detergent on an empty drum
- 2Switch to HE detergent and use the marked lines inside the dispenser drawer
- 3Add one cup of white vinegar to an empty hot rinse to cut residual suds
- 4Clean the pump filter if foam was visible and Sd appeared near the end of drain
When to call a technician
Sd on every cycle with correct HE detergent and an empty tub suggests drain pump or pressure sensor service—not a suds issue.
Affected models
- Whirlpool WFW560CHW
- Whirlpool WFW9620HW
- Whirlpool WFW6620HC
Prevention & maintenance
- Clean drain filters and hose terminations monthly on high-use washing machines to prevent SD from lint and food debris buildup.
- Record when SD appears in the cycle and whether it clears after a 60-second power reset on your Whirlpool washing machine—that detail speeds diagnosis if you call service.
- Keep the model and serial number from the rating plate when ordering parts for SD; Whirlpool uses multiple revisions with different harness lengths and board firmware.
- Photograph wiring connector orientation before disconnecting any component while troubleshooting SD; reversed plugs on pumps and valves cause immediate repeat faults.