Sud or Sd is not a failure code. It means the washer detected excessive suds and is automatically pausing and adding extra rinse water to break them down before it can spin.
Brand: Whirlpool
Whirlpool Washer Sud Error Code (Too Many Suds)
Sud or Sd means the washer detected too many suds and is automatically extending the rinse; it’s almost always a detergent issue, not a fault.
Meaning
Possible causes
No cause is certain until it has been checked on the appliance.
- Likely Non-HE (non-High-Efficiency) detergent used in an HE washer
- Possible Too much detergent for the load size
- Rare "No splash" or "easy pour" liquid chlorine bleach with a thickening agent
First checks
- Check the detergent bottle for the HE logo; use only HE detergent going forward.
- Reduce the amount of detergent used next load.
- Let the washer complete its automatic extended rinse rather than interrupting it.
What not to do
- Adding more detergent or restarting the cycle while Sud or Sd is displayed, which prolongs the suds instead of clearing them.
An error code varies by brand
The same code can have a different meaning depending on the brand and model. Always check your appliance's manual before acting.
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When to call a professional
If the simple checks didn’t solve it, if the fix involves electrical wiring, gas, or the refrigerant circuit, or if you have any doubt at all: stop there and hand the appliance to a qualified repair professional.