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Maytag Washer Error Code Sud (Excessive Suds)

Sud means the washer detected too many suds, almost always from using regular detergent instead of HE.

Risk: Low

Meaning

Sud shows up on Maytag’s top-load HE washers when the machine senses more suds than it can rinse out properly. It’s not a mechanical fault, it’s the washer reacting to what’s in the drum. In nearly every case the cause traces back to detergent: the wrong type, too much of it, or built-up residue from past cycles.

The information provided here is a diagnostic aid and does not replace the intervention of a qualified professional.

Possible causes

No cause is certain until it has been checked on the appliance.

Very likely Regular (non-HE) detergent used in an HE washer
Likely Too much HE detergent for the load size or soil level
Possible Old detergent residue built up in the dispenser or drum over time
Possible Fabric softener overused alongside detergent

Tools needed

Detergent cap or measuring spoon
Washer cleaner tablet

First checks

Check the detergent bottle for the "he" logo. Regular detergent foams far more than an HE washer is designed to handle.
Measure detergent against the load size marked on the cap instead of estimating by eye.
Run an empty hot-water cycle with a washer cleaner to clear residue built up from past overdosing.
Cut back fabric softener to the amount marked on the dispenser, or skip it for one cycle to see if Sud stops.

Step-by-step diagnosis

Let the cycle finish. The washer is already adding water and extending the rinse to break the foam down.
Check the detergent bottle for the he symbol. An HE drum uses a fraction of the water an old top loader did, so conventional detergent never gets rinsed out and keeps foaming.
Measure against the load size marked on the cap instead of pouring by eye. Most people use two to three times what an HE machine needs.
Run an empty hot cycle with a washer cleaner tablet to strip the residue that past overdosing has left in the outer tub. That residue keeps producing suds long after you have corrected the dose.
Cut the fabric softener back to the marked amount, or skip it for a cycle to see whether Sud stops.
Wipe the dispenser drawer and its housing, where old detergent sets hard.

What not to do

Adding more detergent to try to compensate for suds you can still see. That makes Sud worse and extends the cycle further.
Switching detergent brands without checking for the HE label. Non-HE detergent from any brand can trigger this code.

When to stop

Sud keeps appearing with correctly dosed HE detergent and a cleaned-out drum.
Foam still shows during a rinse-only cycle run with nothing added at all.

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.

Related guides

When to call a professional

If the simple checks turned up nothing, if the repair involves electricity, gas, or the sealed refrigerant system, or if you have any doubt at all: stop there and hand the appliance over to a qualified technician.