U3 code error - Daikin RXYMQ36MVJU, VRV-S Air Cooled Six Zone Outdoor Inverter Heat Pump - 3

check these sites...

https://www.google.com/search?q=u3+error+code+lg+washer

https://mynameisneil.com/blog/fixing-the-u2-and-u3-errors-on-pentax-point-and-shoot-1qzoom-ezy-r/

como resetear o resolver el problema del codigo error u3 xerox wc5020

contact the u3 smart drive manufacturer

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.

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

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

I don't have the service manual with me at the moment and I'm on the road. I'll look up the error code and update this somtime tomorrow.

Dan

CALL TECHNICIAN NEAR YOU B COZ SOME WIRING CONNECTION PROBLEM.

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