Found an oval rubber gasket in bottom of 4000 series AquaSurge with speedclean dishwasher model PLD4555RFC3. Look to go inside dishwasher but cannot locate where

The noise is most likely coming from the wash pump. This accounts for the noise and the not cleaning. At 12 years old parts may no longer be available.

Hello ddux97 - Here are a few simple troubleshooting tips that may help you resolve this issue:

· Do you have hard water? Hard water is the primary reason to cause soap residue. Water hardness can be determined by the local water supply company, water treatment company or via a water hardness test kit, which can be found at local part distributors or hardware stores. Some kind of water softening is recommended, in areas where the water hardness is 12 grains or higher. For very hard water a home water softening system would be recommended.

· Will the upper spray arm rotate freely? If it does not, then there isn't enough water being pumped to the spray arm or the full flow of water is not making it to the upper spray arm. Remove or replace the spray arm assemblies since it is possibly damaged.

· Confirm that the drain hose is strapped up properly under the sink to prevent the water from siphoning out during the cycle.

· Dishwashers require the water inside the unit tank to be 120F to perform properly. Best way to ensure this happens is to run the sink faucet until the water comes out hot before the dishwasher is turned on. This will ensure that hot, 120F water goes directly into the dishwasher when it starts to fill. When checking dishwashing detergent boxes and with detergent manufacturers, the compounds in the detergent need water temperatures to be between 125F - 140F to dissolve in the dishwasher. The water pressure should be 20-120 psi (pounds per square inch). If it is too low, I recommend reaching out to a plumber to further assist you.

· Rinse aid dispenser should be checked and filled about once a month depending on the number of washes you do in a month since this will cause cloudy dishes and soap residue.

If these basic troubleshooting tips prove ineffective, then at this point, I would recommend having a service technician to diagnose the problem before investing in unnecessary parts.

Hello Teresa Ann - Typically error code UO indicates that while the dishwasher is in wash cycle, the main control board is not receiving signal from the vent assembly and that the vent plunger is in a closed position. A professional will need to check the wiring between both parts and depending from the results either part may need replacing.

is drain hole itself clogged?

Try to reset unit to factory defaults. If necessary contact mfg for protocol to accomplish this

With regards to the white film, I would check for a soap buildup. Turn the dishwasher on, let it run for 5 minutes or so then open the door and see if there is suds. If there is, pour a half cup of cooking oil in the water and let it finish the cycle. That will clear the suds. It is possible that the rinse agent dispener has failed and is letting in too much jetdry as well. With regards to the leak, install a slash shield in the gasket, part number 154701001. it comes with instructions, really easy to put in and should fix teh problem.

the low light refers to the rince aid being empty. fill it back up and the light will turn off

VO is vent sticking open, in top of tub upper right. You may be able to clean if not replace it.

Remove all inside racks.filters and check for "something"
It is possible for some rubber components to turn to carbon black. Scrape around inside of hoses to check for this , if found, replace.

Click link below, Hope this helps, Sea Breeze

http://www.managemyhome.com/mmh/products/ManualSearch.action