Question about Fisher DD603B / DD603W / DD603H Dishwasher

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Error U3 Starts and runs for about 5 mins, then it beeps and comes up red in the display with U3 written on it. do you know what this means?

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  • di Dec 14, 2008

    My apologies it is a DS601V2 model and thank you so much, the pressure seemed to be the problem as it is working fine now.


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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.Error U3 - ee2ba21.jpg

Posted on Dec 14, 2008

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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.

Posted on Dec 14, 2008

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