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Posted on Jul 08, 2011
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I get a "sud" code even though there does not seem

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  • Master 6,277 Answers
  • Posted on Jul 08, 2011
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Hi from retired Englishman in SW France,
(What follows is my pre-typed complete guidance for drainage problems. I know you have carried out most of it but please read through and then try actually testing the pump- the last 2 paragraphs- JUST to make absolutely certain that it is not becomimg jammed/slowed by something on occasions.)

I would gently suggest as a first step that you clean the drain motor/pump lint tray/filter. So many 'faults' are caused by blocked filters and many machines will not even go to rinse or spin or release the door lock if there is any water still left inside.
Here are my complete and generic guidance notes for checking both the drain motor filter and the drain motor ;-0)
If you are unsure where the filter is, it is often behind the front lower (kick) panel (or in some machines at the rear in an awkward position!). These panels are either held on by (plasic) screws or will just pull off. Most filters are held in by a round cover/knob. Sometimes the filter will not come out with the cover and you will have to persuade it to come out to play.

REMOVE POWER AND ENSURE YOU HAVE A WATER RECEPTACLE/RAGS TO SOAK UP THE WATER WHICH IS BOUND TO POUR OUT (alternatively use a wet vac as sensibly suggested by VinnyB1234!)
It's surprising what people have found in theirs! It is always worthwhile checking it on a regular basis.
Now- whilst the filter is removed it is normally possible to see the drain motor and ensure it is not jammed by a foreign object such as a needle or a toothpick. It should be able to be turned by hand/finger- the power IS OFF!
At this point it is also possible to test if the motor works. No clothes or water in the machine, select a spin cycle and put the power back on. You should be able to see the motor turning at some point, possibly straight away. Using something suitable like a glove see if it is easy to briefly slow the motor down. If it is easy then the motor is malfunctioning.

If this has assisted you please consider a 4 thumbs up for the rating.
Thanks and good luck!
John C

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0helpful
1answer

I get an F21 and SUD code. We have cleaned the trap connected to pump (it was clean though). Is it safe to say its the pump?

F22 is a low dram code. SUD means high suds. Most likely there's junk (coins, dirt, gunk, Bobby pins, etc.) Jammed in the sump.

This response gives a good description on how to clean it out.

https://www.ifixit.com/Answers/View/120564/Continuing+error+codes+Sud+and+F21+after+trouble+shooting
0helpful
1answer

I have sud


It should start back up when the suds have cleared. Though you may need to manually restart the machine. If you don't use high efficiency (he) detergent you are likely to get the suds error frequently.


What happens is that regular detergent creates too many suds. When the machine drains the water emptys first leaving a layer of suds. The pump can't move suds because of it's poor design. Try to imagine a hose filled with suds with a small impeller at one end. The impeller can pull the suds immediately around it away but anything out of it's reach will just sit there till they pop.

Likewise, the pressure switch can't detect a lack of pressure because the suds (being ornery little clusters of air) sit in the space that should be occupied by water, or in this case no water. Fooling in effect, the pressure switch into behaving as if the tub still contains water. Once enough bubbles pop the pressure switch will do it's thing and the time display will start where it stopped as does the rest of the cycle, in this case final spin. Or it may give an error code and go into standby mode.

Unless you just use way too much detergent ten minutes should be way more than enough time for suds to pop or about anything else to correct itself. So if it doesn't start back up on it's own try to restart it yourself.

The other possibility is that there is debris in the drain hose that goes from tub to drain pump. Or if drain pump has a clean out basket as part of the drain pump it will likely need cleaned as well.



0helpful
1answer

What does "sud" mean on the time remaining display?

You used to much soap producing too many suds. Too many suds interferes with operation of machine. Read your owners manual
1helpful
1answer

What does it mean when sud appears on the display screen and the washers seems like its not doing anything?

Hi, W/D here.
What you are seeing is the suds (SUD) error code, and is sometimes followed by a long drain fault code (F02).
This does not necessarily indicate that you need to change anything at this time. When the machine senses too much suds, the error code is displayed, when too much suds are actually present, a longer drain time results.
Duets are HE (high efficiency) machines, and require a detergent that produces little suds. If you are using HE detergent, cut back on it until you can run a cycle without getting the SUD/F02 alarms. If you are not using HE detergent (we don't either), you really have to be careful with the amount of detergent used.
Press PAUSE/CANCEL twice to clear the display. Run a cycle without any detergent to flush the machine.
You need to check that the drain hose isn't plugged or have a kink in it.
Make sure that the pump is running. You may need to check the electrical connections at the pump.
Check the filter on the drain pump for debris or foreign objects, which might cause the drain cycle to be extended, if you are also getting the F02 code.
If limiting the detergent, and nothing was found in checking the other items listed, then the pump may need to be replaced.

Best regards, --W/D--
0helpful
1answer

I have a kenmore he3 the erroe code says "sud" can

SUDS LOCK (to much detergent detected during the wash cycle)

he motor control unit senses a suds lock condition by analyzing the current draw on the drive motor. If "Sud" is displayed a potential suds lock is detected. This may signify a bad pump, an extra heavy load, excessive detergent, or excessive suds.

Potential Causes

• If too much detergent was used, run the unit through a Rinse/ Spin cycle then a Normal cycle without adding any detergent. This should clear the unit of the excess detergent.
• Check the drain hose and make sure it is not plugged or kinked.
2helpful
1answer

Stopped on the rinse cycle an give the 5 ud message.

The Sud (5ud) error code indicates a suds lock. This is normally caused by excessive detergent causing too much suds. It can also be caused by not using HE (High Efficiency) detergent. Overloading the washer can also cause this problem. Try running a cycle with no clothes and no detergent added. See if suds emerge in the washer even though no detergent was added.
0helpful
1answer

Whirlpool duet front load will not drain and gives an error code of "sud"

be sure you are using he(high efficency low suds) detergent ..the tide he tend to suds a lot and all brands may over suds some in soft water try cutting back some if problem ..not truly suds issue? ck pump for clog..remove bottom cover turn pump clean out counterclockwise and pull clean out and reinstall try running washer short cycle cold water to removce excess suds
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