My Whirlpool Duet Sport washer is giving a F-28 error message. What is wrong?

The F35 indicates a water level pressure sensor failure. A loose wire harness connection could be causing this problem if there is no water or suds in the tub. I recommend unplugging the washer and removing the top panel. Screws at the very back of the top panel secure it to the washer frame. Remove the screws and then pull the top panel slightly back and then up and off of the washer. The analog water level pressure sensor is shown in the first image below. The second image shows a clear picture of this component. Check the wire harness connection on this sensor. If you find a loose connection, secure the wire harness properly on the component then reassemble and test the washer. If you continue to get the F35 code, then the pressure switch will need to be replaced. I hope this helps.

also for the F-28 issue
http://fixitnow.com/wp/2011/06/30/how-to-troubleshoot-an-f28-error-code-in-a-whirlpool-duet-sport-washer/

Repairing the F02 error code can usually be done without ordering parts. Tools needed to repair your whirlpool Duet F02 error code are towels and a quarter inch socket.
Tip the washer back at a 45 degree angle. On the bottom panel there are three or four screws, with the screws removed the panel will slide down and off. With the lower access panel now removed you will have access to the washers drain pump clean out.
With the water already bailed from the washer you can twist the filter head counter-clockwise to remove. Twisting the filter head counter-clockwise will loosen filter so it can be pulled out.
With the filter out clean and install it back into washer.
Run a quick cycle to ensure the washer is back up and running and the F02 error has disappeared. If the error comes back, it may require you to clean the drain pump filter again.
If you require a new drain pump motor, you can purchase the part from the link below.
- See more at: http://www.appliancerepairlesson.com/2011/03/12/how-to-fix-whirlpool-duet-error-code-f02-duet-sport-error-f02-fix/#sthash.PuGd0iuQ.dpuf

The tech sheet is located under the kick /service panel in a jacket. Suggetions and codes are in it. Duet sport service manual

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

power failure--------unplug the unit for 5 minutes and see if it clears that code

Relates to an electrical/electronic problem
Try the following:
Select PAUSE/CANCEL twice to cancel the cycle. Select
DRAIN/SPIN if there is excessive water in the washer.
Re-select cycle and select HOLD TO START. If the problem
remains, call for service.

http://www.fixya.com/support/r3574284-checking_the_drain_pump_on_a_front_loader

F28 is a serial bus error from the CCU (Central Control Unit) to the MCU (Motor Control Unit).

All you need is some Electronics contact cleaner spray and a 1/4 inch socket to remove the top of the machine and the back of the machine.
The CCU is the computer looking box at the top front right hand corner.
Find connector M13, (has red marking on it and only 3 wires) disconnect it by pushing the retainer tab back and pulling gently on the connector.
Spray the contacts of the connector and computer with connector cleaner.
Then re-assemble connector.
The MCU is in the back lower left corner.
Find the connector with 3 wires and red mark, and remove this connector in the same way you did the other, spray it and re-install.
Put the back and top back on.

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I have a whirlpool duet sport electric dryer with an error code of F 26.

i have the same problem... and i got it fixed 3 times.. the frist time.. there was stuff stuck in the pump... but every time i go look in the pump.. theres nuthing and i still get f-23... good luck..

f-28 code is a serial communication error between the central control unit-ccu- and the motor control unit-mcu-. depending on the age under one year the unit should be under warranty, if so call a service man that care of the problem in warranty. if the unit is over one old you can remove the top and check all connections between the ccu and mcu.