My Whirlpool Duet Steam washer (WFW9600TW) flashes F35 shortly after the cycle starts and then turns itself off.

It helps to have FULL make and model in such questions, but here are a few ideas

The F35 error code indicates an analog pressure sensor error. The analog pressure sensor is the component that detects water level in the washer tub. This error can usually be cleared but it will occur again if the main control board still detects a problem with the signal from the analog pressure sensor.
Jun 4, 2011

F35 error code appears during cycle - iFixit

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Whirlpool duet washer f35 error code

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The F35 error code in the Whirlpool washer indicates some problems with the water level pressure switch. This sensor is responsible for measuring the amount ...

Troubleshooting the F35 Sud Error Code in the Whirlpool Duet ...

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12:49 Troubleshooting the F35 Sud Error Code in the Whirlpool Duet Steam Washer · For more tech advice on ...
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F35 is a water level error.
The water level switch (pressure switch) has malfunctioned.

If you remove the top panel, three screws in the back, you will have access to the pressure switch.

With the tub empty, remove the vinyl hose from the switch and blow backwards through the hose to clear any restrictions.

If the fault codes return after doing this, you will likely need to replace the pressure switch.


Also - please be sure to use He soap.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

make sure pump is clear. open toe panel and access pump.

I;ve had the same problem (SUD on first fill) and found this most helpful for my WFW9600TW01 Duet washer

http://www.tellingmachine.com/post/Fixing-Sud-and-F35-errors-on-my-Whirlpool-WFW9600TW01-Washer.aspx

I duplicated his actions and it cleared up my SUD/F35 error. I think running the diagnostic test multiple times flushes the sensors/sensing lines to eliminate the problem.

SUD, usually caused by using the wrong type of soap. Your soap should have the letters "HE" on front of box/bottle. SUD can also be a bad drain pump, question is, does it still have water showing in tub?

F35, is a pressure sensor # W10156252, good luck finding it, as Whirlpool has problem keeping these things in stock. They list price at $112.82. Only takes about 20 minutes to change. Research sears.com, select PARTS Direct, enter model number, click on cabinet parts, find analog pressuer switch, see if they have in stock. Or, research the net for someone that does.

Take top of washer lid off, pressure switch is located on top right rear side wall of machine.

Good luck.

If this is a steam unit you have a bad analog pressure switch,has been a common issue in those units,Gives an F35 core and sometimes a SUD code. 

if it is less than one year old call for service it should be covered. if not take the kick panel off and locate the tech sheet it is either in the kick panel or in the cabinet to the right. it will give you a list of error codes find out what it means and let me know thanks

F35 is a water level error.
The water level switch (pressure switch) has malfunctioned.

If you remove the top panel, three screws in the back, you will have access to the pressure switch.

With the tub empty, remove the vinyl hose from the switch and blow backwards through the hose to clear any restrictions.

If the fault codes return after doing this, you will likely need to replace the pressure switch.


Also - please be sure to use He soap.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

Sud= The unit has sensed there is too many suds in the unit it will flush and pump out for 5 min and restart on its own..This is caused by too much soap use..
From the book :
SUD Code=
If too much detergent was used:
—Run the unit through a Rinse/Spin cycle.
—Run a Normal cycle without adding any detergent.
This should clear the unit of the excess detergent.
1. Check the drain hose and make sure it is not plugged
or kinked.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the drain pump,
pressure switch, and Central Control Unit (CCU).
4. Check/clean drain pump filter of foreign objects.
5. Plug in washer or reconnect power.
6. Check drain pump.
7. Check the pressure switch.
8. Verify CCU operation by running a Diagnostic test or any
cycle.

Our new Whirlpool Duet had the same problem after only three months of use. We contacted Whirlpool since the washer is still under warranty. The issue is a "bad pressure switch". The part number is W10156252. Service company replaced the part yesterday, and the washer is working like normal. Whirlpool nor the service company had any explanation why the part would go bad in such a short time. No charge since the washer is under warranty.

WARNING - There must be a shortageWe were initially told that the part was backordered for 2 to 3 weeks. We even tried to obtain the part through other vendors and got the same time frame. Furious with the potential of being without a brand new washer for 3 weeks, we spent many hours on the phone with Whirlpool trying to expedite the part. After some strong encouragement and moving the issue up the chain of customer service, Whirlpool agreed to pull a part from the factory inventory where the washers are built. The only problem is that nobody could tell us when, or if, the new part would be shipped. Suddenly, the part just arrived by FedEx at our house. In all, our washer was inoperable for 1 week. Be persistent. They will tell you over and over there is nothing they can do.

If you negotiate well, Whirlpool will extend your factory warranty for an additional year.