Question about Miele 24 in. G646SC Plus Free-Standing Dishwasher

2 Answers

Inlet/outlet light comes on

Started as a sporadic fault: stopped cycle after first pump in/out, then in/out light came on. Have checked the drain pump impellor as the manual suggests, but the machine has now stopped altogether. Nothing seems to be wrong/blocked with inlet or outlet pipes. Help?!

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  • Anonymous Feb 10, 2008

    I have experienced a similar fault. When initiating a wash cycle the machine will not start and the red inlet/outlet light comes on. I usually follow a set procedure as follows (But you can skip this lot and go straight to 'plan B' described at the end if you like.....).

    1. Firstly I switch off the electrical supply at the outlet then remove the filter and check the water level in the sump - usually the water level is too high and I use cups and a sponge to transfer water to a bucket until there is virtually no water left in the sump.

    2. While down there I flick over the metal retaining spring clip (it hinges over into the sump) then lift out the impeller cover and inspect each paddle and remove debris if there is any blockage.

    3. Refit the impeller housing by entering the outlet pipe first and pressing down firmly - clip the metal retaining spring over the top until secure.

    4. Clean and refit all the filters.

    5. I then inspect the outlet hose by releasing the connection to the outlet pipe - occassionally this can be slightly restricted or clogged but is often free running.

    6. I isolate the water inlet and unscrew the brass inlet connection (mine has a bulky unit that has a plastic cover and I suspect contains a device to detect inlet water flow). Upon inspection there is a small screen/filter and on some occasions this has appeared to be clogged up with hard water limescale deposits but is easily cleaned with a toothbrush.

    7. Reconnect brass inlet connection and open water isolation valve.

    8. Electrical power is reconnected and I try to initiate a wash cycle.

    9. If the red light for Inlet /outlet still comes on and the unit still won't work I then carry out plan B ...

    Plan B is really simple. Switch off the electrical supply, go and have a cup of tea. Return to the dishwasher and set the temp dial to 'STOP'. Reconnect the electrical supply, switch the unit to the ON position then press the start button and select a wash cycle. The inlet outlet light has gone out and the unit starts its wash cycle. Hey presto... Now why didn't I try plan B in the first place?



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Machine is possibly not filling with correct amount of water if this light comes on early in the cycle

Posted on Sep 13, 2007

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Plan B as per your Guest post 10th Feb 2008 works perfectly. Thanks sooooo much, I didn't really want to do the dishes manually!!!

Posted on Dec 23, 2009


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