Question about Dishwashers

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We just installed a Fisher & Paykel DD603 dishwasher. Intially it would not drain correctly. And, proceeded to flood the bottom and set off the F1 error code. I dried out the bottom to get the F1 code to stop, which it did. After adjusting the leveling the dishwasher drained both drawers correctly, once. A few minutes after the rinse cycle had finished and the drawers were empty of water the F1 code started again. Now it will not go away unless I unplug the machine. I dried out the bottom very well with a hair dryer and even removed the plastic cover over the flood sensor and dried out everything around the flood sensor. I am having difficulty getting the machine into diagnostic mode. I suspect the lid motors need to be replaced but can't get it into diagnostic mode to check. I followed the instructions in the service manual (press keylock and start/pause at the same time for five seconds) but it doesn't seem to work. Does this mean I need to replace a computer part? Or am I missing some trick? Thank you!

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  • j_pickel Jun 05, 2010

    just looking for a second opinion on the problem I am having with my fisher paykel dd603 dishwasher. Thank you!

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2 Answers

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  • Master
  • 6,784 Answers

HI. The original code(f1) is in reference to a overfill condition. This may be a clogged drainage Assembly. This condition will usually cause the control sector to short out if not corrected, due to the flood switch malfunction. There are flood switches located on the bottom of each drawer. You will need to inspect the flood switch contacts for oxidation(use a ruby red eraser tip for cleaning the flood switch contacts, if needed). You can also check for proper resistance at the switches, as well. If the flood switch ohms out ok and the contacts are free of oxidation, simply clear any obstruction that can be found in the hoses and pump assembly. Clean the fine particle filter, if needed.

  • NOTE_ Try to reset the main control by shutting down the appropriate circuit breaker for five minutes. Once the five minutes are up, re- introduce power to the unit, and try to initiate a command. If the main control board dose not respond after the hard reset, it will need to be replaced, asap.

Posted on Jun 05, 2010

  • Michael Masters
    Michael Masters Jun 05, 2010


    • Start with the bottom drawer when inspecting the flood switch. Remove the wire harness cover on the underside of the drawer to expose the flood switch. Once the cover is removed, un-clip the wire harness, fill hose, and drain hose. Next, un-clip the linkage at the back of the bottom drawer and lift the
      drawer off the slider arms. This will expose the flood switch, on the left-hand side of the bottom panel. Each switch will have three spade connections and is located under the switch housing.

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  • Master
  • 8,619 Answers

Hi



Thanks for using FixYa. F1 error means that the flood switch has been activated. You’ll need to reset it by powering off the breaker or by unplugging the unit from the power socket and mains for more than five minutes. Please check that there is no blockage in the drain hose and it is not raised higher otherwise the water will run back to the dishwasher. Although you have already dried out the bottom please once again perform the following procedure---

    • Unplug power and remove bottom dish drawer
    • Use a Sponge and dry all the excess water underneath
    • Remove circuit board cover
    • Dry all around and underneath as much as possible
    • Apply hairdryer for 10-15min

Please do accept the solution if the issue is resolved or post a comment for further assistance.


Thanks
Rylee

Posted on Jun 05, 2010

  • 1 more comment 
  • j_pickel Jun 05, 2010

    Okay, I followed your instructions and removed the bottom drawer, used a towel to dry up any water although I did not see any and the towel came up dry, I removed the circut board cover, and dried that out (again no visible water), then dried it with a hair dryer for 20 minutes. I then plugged it back in and still got the F1 error and was not able to enter the diagnostic mode. Both drawers have the red lights above the keylock and start/pause button lit up. Both drawers sound like they are trying to start up but the machines keep beeping and will not stop until I unplug it.



    After I removed the circut board cover I noticed that the ground wire had broken off from where it was originally attached. Obviously this will have to be fixed but I am not sure this would cause the perpetually F1 error.



    Any ideas?



    Thank you.

  • Rylee Smith
    Rylee Smith Jun 05, 2010

    I thought
    your issue was resolved earlier this week however, as I said F1 is a flood code
    which means that if any water is sensed under the bottom drawer this unit will
    show the error. To resolve this open the top drawer and check if there is any
    water on top of the divider so that you know if the leak is from top or bottom.
    This can also happen if something is not allowing the lid to close, water inlet
    valve leak, leaking/blocked drain hose and/or the flood switch PCB. Also the
    issue can be caused due to that broken wire. If everything else appears to be
    fine then it can be anything from the main board to the drawer, may be the
    wiring as I said earlier.
    Please do accept the
    solution if the issue is resolved or post a comment for further assistance.









    Thanks


    Rylee



  • Rylee Smith
    Rylee Smith Jun 05, 2010

    Still dont think second opinion will provide you a more detailed information then I did.


    Thanks

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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
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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.

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Pull the bottom drawer out !!!!! To do this on the left and right sides of the bottom drawer you need to pull the pins (Plastic) then pull it out it has hoses still connected pull out and turn on side look in the back left corner (with Pwr off) there is a board there and it has a water (Flood sensor) on it make sure it is dry this is what the Fault code is

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