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Kenmore HE2 Plus F21, Sd, and F33 error codes.

We researched the F21 and Sd error codes over the weekend and discovered that we should check and clean the filter, check the wiring, and make sure the drain hoses are not clogged. We have done all of that and everything checks out. During my last test run in the drain and rinse cycle we received an error code that says the Central Control Unit needs to be replaced. I'm inclined to think that the drain pump needs to be replaced. What do you think?

Kenmore , Washers
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2 Answers from these members:
Manage My Life
Error codes can be such a pain to find out what it means on appliances. I took some time to search your error codes you are getting in the Manage My Life website and found some great links. I have attached the links below. You can also add model number to this thread for a better answer from the experts!
by Manage My Life
July 11th, 2011
Answered in 5 minutes
0 votes
Manage My Life
Hi Jerry,

Thank you for submitting a question to Manage My Life.

I am sorry you are having problems with your washer.

The F21 and the F33 errors indicate drain issues. The Sd is most often associated with too much detergent being used.

I recommend ohming the drain pump from the main control board before you replace it. It should ohm at about 12 ohms down the wires. You should make sure the wire harness connection at the main control is good. Check the pressure hose connection at the pressure switch and at the tub. I also recommend making sure the washer is not full of suds.

To gain access to the main control you will need to remove the top of the washer. There are screws located along the top rear edge of the washer top that will need to be removed. I am including a wiring diagram below.

If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:

Sears Home Services


Here is a link that you may use to view the parts list diagram and for parts purchases;

Sears Parts Direct


I hope this is helpful. Check the things I have covered here and if I may be of further assistance as more details become available, please reply to this post.

Thanks again for using Manage My Life.

by Manage My Life
July 12th, 2011
Answered in 24 hours
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