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Tyler Z.
Tyler Z., Appliance Doc
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Experience:  9+ years being an appliance technician with factory training.
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What is wrong when the screen shows U3 in Red and beeps. the

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What is wrong when the screen shows U3 in Red and beeps. the machine then stops
Hello, and thank you for using this service. I'll be helping you with your problem today.

This error means that the dishwasher has switched over to low pressure when it should be on high pressure in the control board. First have the unit turned off. Then open up the drawer thats givin you trouble. The badge ought to be lit.

Now simultaneously press those static touch pads on each end of those led status lites (the ones on the drawer top?) (Cycle Select, and Eco-sensor pads)
Hold them for about 5 seconds.

Now If you have a metal front machine, the badge display will either show HP or LP. Assuming you have normal water pressure here like about 50 - 70 psi you want ta select the HP setting.

Do that by pressing the start button till you get what you want, then press power off to lock the setting in.

If you have an integrated model with no display, listen for a Hi or Low beep instead of looking for a display in the badge window.

this applies to 602's only. The 603's got smart and figgered out the difference all by themselves
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