Question about Fisher and Paykel 23 in. DD-603SS Built-in Dishwasher

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U3 code I have a U3 error code on my dishwasher, what does that code mean?

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  • Anonymous Dec 12, 2007

    u3 keep showing up. can you help?

  • Anonymous Jan 08, 2009

    how do i checked for a blocked drain pipe?

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I have had this problem and went straight to one of the F&P engineers... U3 will display because the water did not drain from the previous stage in the cycle... Check the HP/LP settings first as this will give the impression the water did not drain if incorrectly set. Otherwise the pump may be damaged, blocked or the waste hose blocked. Check these next. I found a little sticker in the waste pipe.
Happy fixing.
Rich

Posted on Oct 26, 2008

  • oeinnz Jan 11, 2009


    From a service manual....

    U3 #--## Time to fill was too

    short, indicating

    water was still in the

    tub.

     Drain pump is blocked.

     Drain hose is blocked.

     Sprayarm or rotor not

    turning freely.

     Motor electronics have

    failed.

     Machine set to 'LP' on a

    high pressure water supply.

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Related Questions:

1 Answer

U3


The dishwasher is filling up too quickly compared to what the controller expects. Try to turn down the water inlet tap under kitchen sink and check. Also see if the water pressure setting in the dishwasher is HP for normal mains water pressure. See

DD603 U3 fault code

Feb 10, 2014 | Fisher and Paykel 23 in. DD-603SS Built-in...

1 Answer

U3 error


It is unclear which model number you have, but in general U3 fault would mean the pump cavity is blocked. It could be also linked to water pressure setting on dishwasher not set at correct level for your mains pressure.

Refer manual on page 33

Mar 21, 2013 | Fisher and Paykel 24 in. DD-602 Built-in...

2 Answers

What does U3 mean?


U3 can mean quite a few things depending on when it occurs and which drawer it is.

It could mean Lid fault and will show up as soon as you start dishwasher.

It could mean drain problems if it occurs later in the wash cycle and there is water left behind.

It could mean the wash arm is not sitting properly if it occurs during wash cycle.

Dec 27, 2010 | Fisher and Paykel 23 in. DD-603SS Built-in...

2 Answers

Red light U3


The U3 error code could mean a few things. Not sure if you get it in both or just one drawer.

It could mean there is something blocking the drain pump. Lift the filter plate and drain filter. Then remove the rotor by disengaging the collar holding the impeller and rotor assembly. clean the area including the channel between the rotor cavity and the drain sump. Put everything back and test.

If this does not get rid of the U3 then it is possible there is a kink in the drain hose. Pull the drawers out and check behind. If nothing visible then other possibility is the inlet water pressure setting is not correct. If you know how to read the water pressure setting from the display then compare the setting on the two drawers.

Please post a comment to let me know what you find.

Jul 03, 2010 | Fisher and Paykel 24 in. DD-602 Built-in...

1 Answer

U3 error code


I believe U3 error on your model of dishwasher could also mean a couple of other things like either the drain hose has an obstruction (kink) or the inlet water pressure is not correct.

Hope this helps in finding out what could be the actual reason. T

o find the kink if any, pull the drawer out as much as possible and feel the hose. Might be better if you took the bottom drawer out from the casing and inspect the hose completely. As the problem is limited to upper drawer you do not have to worry about what is under the bottom drawer. Check the water pressure setting is same for both drawers. If so then that is not an issue as bottom drawer is working ok according to your description. See your manual for instruction on how to check the water supply pressure setting on your dishwasher.

Jun 13, 2010 | Fisher and Paykel DishDrawer DS605FDSM...

1 Answer

U3 error code


Error code U3 could mean the drain pump could be blocked.

Remove the trays and the impeller arm. Empty the water with small container or towel. Open the filter plate and drain filter. Get the motor out and check the cavity for any rubbish. Also use a stiff thin wire to clean the passage between drain filter and motor cavity. The instructions for removing the filter plate and motor assembly are in the user guide.
Good luck

Dec 05, 2009 | Fisher and Paykel 23 in. DD-603SS Built-in...

1 Answer

I have an error code of U3 in the top drawer . It will not complete any cycle.


Error code U3 could mean the drain pump is blocked.

Remove the trays and the impeller arm. Empty the water with small container or towel. Open the filter plate and drain filter. Get the motor out and check the cavity for any rubbish. Also use a stiff thin wire to clean the passage between drain filter and motor cavity. The instructions for removing the filter plate and motor assembly are in the user guide.
Good luck

Nov 10, 2009 | Fisher and Paykel 24 in. DD603H W Built-in...

1 Answer

Top drawer works but bottom drawer shows code u3 and bottom drawer started leaking water before the u3 code showed up


U3 code generally relates to drain pump blocked. This could mean the water is not able to drain out. Leaking of water is not a good sign. Shows the vacuum seal is not working.

Clean the drawer door from inside and make sure the seal lining is sitting properly. Also the filter plate and the motor cavity needs cleaning. You will need to see the user guide on how to do this.

Nov 02, 2009 | Fisher and Paykel 23 in. DD-603SS Built-in...

2 Answers

Error U3


That's a "Low Pressure" fault and it's possible you may only need to reset the mode. This question is posted under DD603 but a U3 code is usually associated with the 602 models. I am including an instruction for you on how to check the setting. Start with that first, it is easy to do.
Let me know if you are not able to read the text.ee2ba21.jpg

Dec 14, 2008 | Fisher DD603B / DD603W / DD603H Dishwasher

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