The bottom drawer is filling with excess water after the top drawer cycles. It doesn't hamper the use of the bottom drawer as the excess water drains during the cycle, but I am concerned about rust, etc. from the excess water standing in the drawer. Please advise. Denise Arnold

It is the drain water from bottom drawer that is finding its way to the top drawer. This could be due to incorrect drain hose height. Check in installation manual. Alternatively you will have to buy an air gap kit and connect the two drain hoses separately to the kitchen sink.

http://www.genuineapplianceparts.net/ecart/item.php?item_id=250&category_id=58

As the drawers share a common outlet to the kitchen sink drain, it is the drain water from bottom drawer going to top drawer. Can happen if the drain hoses are not following the correct specifications for installation. An air gap kit is available to solve the problems.

Refer
http://www.genuineapplianceparts.net/product/WT50/WT50-Dual-Air-Gap-Kit/?preadd=action&key=WT50

Hi, U-i is a user fault which means somehow the either the water was turned off, the drawer while filling was draining at the same time, water did not enter the drawer within 3 minutes of start, or you had excessive foaming.
Is the water to the drawer on? Was there suds in the drawer?
Hit the power button far left on the control, open and close drawer. Run a rinse only cycle and see if it fills like normal, if not get back to me and I can walk you thought a test through the control to check it.
Good Luck

I’m happy to help further over the phone at https://www.6ya.com/expert/gere_bf68e6055dd61249

ok, the machine flooded and the water has leaked into the bottom of the machine, 1st turn off the machine at the power point. 2nd- open the top drawer and remove the suds from it. 3rd. open the bottom drawer and look under it to the bottom of the cabinet . that is where the water will be. use a torch if you have to. now you need to dry the water up. you can do this with a hair dryer or a fan heater. the reason the machine is flashing F1 is because the water has triggered the flood switch and you need to dry up that water. please reply 4 more help.once dryed F1 will disappear. please make sure all the suds are removed from the top drawer. good luck

Fisher and Paykel design a air gap kit to prevent the water back flowing to the other while one is running. it really works and worth of your money. You need to change the lid seal and a pair of actuators from the top drawer. Because of the leak then the floor switch activated not allowing a complete cycle. Need to dry out the wetness from the bottom housing of both top and lower drawers by pulling the tubes out and accessing from the left side with small tower until it completely dry. Here is a link to buy air gap kit http://www.fisherpaykelparts.net/product/WT50/WT50-Dual-Air-Gap-Kit/

I am not a repairman but have installed several duel drawer dishwashers. Most dishwashers have a check valve preventing backflow. Water under pressure will always follow the path of least resistance and in your case it is going into the upper drawer. Be sure the drain is open and flowing easily under your sink whether that be the disposal or a TEE. It may help if the drain line is elevated as high as it can go under the sink just before it reaches the drain. How often do you use the top drawer? Perhaps run a cycle on the hottest cycle without dishes to attemt to clean or force through any contaminants in the check valve through into the drain. Hope this helps, Ken

Check your email

I suggest pressing the keylock and power button together, hold for 5 secs, the display will change orange, the display should read HP if it says LP, press the start button to make display read HP.Then press power button to store. You will need to manually removed the water from the machine before restarting

poss water valve b4 i would consider a control