MY FISHER AND PAYKEL DD603-SS BOTTOM DRAWER IS NOT DRAINING. HOW DO I FIX THIS?

If you hear the motor sound during drain cycle then it is likely the drain hose is cracked and pump cannot generate enough pressure to empty the drawer. You will have to find the cracked portion of the hose and replace it. It appears the bottom drawer is operating properly.

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

check your kitchen drain as it might be blocked or if you have a garbage disposal (kitchen insinkerator) make sure it is cleared before running the dishwasher.

You may want to check up if the water collects in the bottom drawer when the top drawer is in wash cycle (ie, taking water from the inlet) or during the drain cycle when it is draining water out. Leave the bottom drawer open and check while the top drawer is running.

If the controller is faulty then you will not see any life in the drawer unit. The controller is mounted on the front of the unit behind the door panel.

Josh, you will need to have a Tech out to look at it... F/P will not sell you parts to repair it. The F1 indicates that the flood switch has been tripped. There are many possible causes for this but probably the upper drawer link support has broken and is getting stuck between the lid and the drawer in which case you will need a new lid and link support.

i need a parts manual for a fisher & paykel dw681es wh

This device will solve the issue of cross-draining between drawers on Fisher paykel double dish drawers.
http://fisherpaykelparts.net/index.php?categoryid=1&productid=7

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I have Fisher & Paykle DW DD603-SS (5Y old)
The upper drawr started to leak H2O out and in to the bothom drawr???
What is the problem and also please what is the solution?
Thanks, JB