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Amana Washing Machine Error Code SUD

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 10, 2026
✓ Low Severity 🔧 Easy DIY Also shown as: 5D

Excessive suds

The most common cause of the SUD error on a Amana washing machine is too much detergent (~65% of cases); start with: wait.

💰 DIY cost: $0–$10 👨‍🔧 Pro cost: $0–$0
Amana Washing Machine error code SUD on the display panel
How the SUD code appears on a Amana washing machine display

What Does Error Code SUD Mean on a Amana Washing Machine?

Excessive suds.

During the cycle the control monitors motor load and pressure-sensor feedback; when the drum fails to reach expected spin speed because excess foam cushions the load, the board reads it as excessive suds and pauses to run a suds-reduction rinse. Unlike a drain fault (long-drain codes) or an off-balance error, SUD points specifically to foam interference rather than water not leaving the tub, and it clears once foam dissipates.

Models affected: High-efficiency top-load and front-load Amana washers, including the NTW4516FW, and similar HE models across recent production years
What owners report: Owners commonly report SUD after switching detergents or overfilling the dispenser, and it often appears mid-cycle with the machine seeming stuck. A frequent quick win is simply waiting it out or running a Rinse & Spin with no detergent; persistent codes usually trace back to too much detergent or residue buildup rather than a real fault.

What Causes Error Code SUD?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

  1. 1
    Too much detergent 65% of cases
  2. 2
    Non-HE detergent 25% of cases
  3. 3
    Residue buildup 10% of cases

How to Fix Amana Washing Machine Error Code SUD

🔧 Easy DIY Est. time: 10–20 min
⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.
  1. 1

    Wait

    Washer resumes automatically.

  2. 2

    Use less detergent

    HE detergent only, 1 tablespoon max.

How to Reset Error Code SUD

Wait — the washer runs a suds-reduction rinse and resumes by itself, usually within 30 minutes. To clear it faster, press Cancel, run a Rinse & Spin with no detergent, then restart the load.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

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When to Call a Professional

SUD rarely needs service. Call a pro only if it appears on every load despite correct HE detergent dosing — repeated false SUD codes point to a failing pressure sensor or a partial drain restriction trapping foam.

Average professional repair cost for this issue: $0–$0

Same Code on Other Brands

Error code SUD appears on these other brands too. See every brand that shows SUD →

Samsung logo
Samsung Washing Machine SUD
Excessive suds detected
LG logo
LG Washing Machine SUD
Excess suds detected — too much foam in the tub
Whirlpool logo
Whirlpool Washing Machine SUD
Excessive suds detected — too much detergent
KitchenAid logo
KitchenAid Washing Machine 5D
Excessive suds detected

Find Replacement Parts

Use these links to find the exact replacement parts for your Amana Washing Machine:

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Search PartSelect
Amana Washing Machine repair parts
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Step-by-step video guides

External links — ApplianceErrors.com is not affiliated with these retailers.

More Amana Washing Machine Error Codes

F9E1 Drain failure — cycle cannot complete F8E1 Low water supply

Frequently Asked Questions

Can I keep using my Amana Washing Machine when error SUD appears? +
Usually yes — SUD is a low-severity detergent notice that rarely stops the washing machine from working, but clearing the underlying cause prevents it from escalating.
What most commonly causes SUD on a Amana Washing Machine? +
Across reported Amana washing machine repairs, the most frequent is too much detergent (65% of cases), non-HE detergent (25%), then residue buildup (10%). Check them in that order before replacing any parts.
SUD keeps coming back after a reset — what should I check next? +
A reset only clears the stored SUD fault; if it returns, the detergent problem is still present. Move on to the physical checks — wait, then use less detergent — since the code will reappear until the root cause is resolved. This is a beginner-friendly job needing only basic hand tools.
How much does it cost to fix Amana Washing Machine error SUD? +
A DIY repair typically runs $0–$10 in parts, versus $0–$0 for a professional service call. Expect the work to take about 10–20 minutes.
Which Amana Washing Machine models show error SUD? +
SUD is documented on High-efficiency top-load and front-load Amana washers, including the NTW4516FW, and similar HE models across recent production years. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

Content verified against manufacturer service documentation. Last verified: June 10, 2026.

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