Question about Bosch Dishwashers

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I have a Bosh Logic dishwasher SGS65L12GB/04 The other day it got to 1 min left and would not stop pumping out water and continued even with the door open. After 5 mins playing around it started working again for a further 2 washes. Now when switched on the pump for pumping out the water works continuously. Reset it time seem to count down but does not do anything reset time goes to 0 and beeps but still the pump runs even with the door open. all buttons seem to work fine but no washing and pump won't switch off. Can you advise which part you think has failed.

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  • jonathan91 Nov 12, 2010

    I can not find the float switch as described.
    Here is the link to the bosch web site of the components of my dishwasher. http://www.bosch-eshop.com/eshop(bD1lbiZ...

  • jonathan91 Nov 12, 2010

    Thanks for the reply
    I had done what you have suggested and a small amount of water came out over the floor.
    I presume that means there is a leak some ware and the water is sitting in the bottom of the machine and a sensor/trigger is picking that up and causing my problem.
    It looks like I need to take the panels off and find the leak.
    I have done this on several Dishwasher in the parts so it should not be to much of a problem.
    Top comes off easily but which order should I remove other panels.

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  • 1,140 Answers

Hi Jonathan,

Welcome to FixYa.

Your float may have got stuck or it's possible that you have water leaking into the bottom of the washer. In the bottom of the wash compartment, next to the drain you will find a plastic dome/mushroom (the float). You might need to rotate the bottom spray arm to see it.

Turn the washer on so that the pump starts to run, open the door and push down on the float. This should stop the pump running. When you let go of the float, if it rises back up on its own, then it's almost certain that you have water in the bottom of the washer. If this is the case please post back for further assistance. If the float stays down, then it may have simply got stuck.

Please try this simple test and post back with the results.

Regards,
BElectric

Posted on Nov 11, 2010

  • 10 more comments 
  • jonathan91 Nov 12, 2010

    I can not find the float switch as described.
    Here is the link to the bosch web site of the components of my dishwasher. http://www.bosch-eshop.com/eshop(bD1lbiZ...

  • DILLIGAF
    DILLIGAF Nov 12, 2010

    OK, then you're going to need to pull the washer out from under the counter. It's easier and safer if you have someone help you with this next test. Firstly, turn the power off and begin pulling the washer out from under the counter. It may be necessary to unplug the power cable, and disconnect the water supply and drain hose - depending on how much slack is available on each. Once you have removed the washer, put some old towels (or similar) on the floor at the back of the washer and make sure they are tucked in under the washer as far as possible. Next, tilt the washer BACKWARDS slowly about to about 15-20 degrees from vertical. Ideally, there should be one of you on each side of the washer to do this as they are fairly heavy and awkward to support. If water can be seen coming from the bottom of the washer, then you have a leak. Finish draining water from the bottom of the washer by tilting it a little further until no more water appears from under the washer. If you have a leak, there are several possible causes (some simple) but you should do this test and post back here with the results for further assistance. I'm up on a customer's roof this afternoon, refitting a Sky dish that came down in the wind last night, but I will check back regularly for your post. BElectric

  • DILLIGAF
    DILLIGAF Nov 12, 2010

    OK - how much water are we talking about roughly? If it's say, half a cup, that's probably not enough to activate the anti-flood protection which is what seems to have happened to your washer. Before you put the dishwasher back (it doesn't matter if you've already done so), make sure you've drained all the water from under the wash compartment. Next, remove the salt compartment cap. Under the cap is a large plastic nut which secures the salt compartment to the washer. If this nut is loose, this will cause a leak into the bottom of the washer. If it can be unscrewed by hand, it's definitely too loose but try tightening it anyway using a pair of water-pump pliers or Stilson. Don't overtighten though, as it's only plastic and will break! Next, reconnect any hoses/cables you disconnected and try switching it on again and see what happens. Please note, the first part of ANY wash cycle in your Bosch runs the pump to remove any residual water from the machine before starting a wash. This should only run for about 10-20 seconds. Try this and report back. Please be aware that this thread is getting quite long and future messages may soon be on a second page. If you scroll to the bottom of the last visible message, you will see a link to "view all messages".

  • DILLIGAF
    DILLIGAF Nov 12, 2010

    If you are going to take the washer apart, you only need to remove the panel on the right side of the washer when facing the door. This will allow you to see under the washer, but a torch/portable lamp would also be useful. You only have a minor leak so a good way of trying to identify the cause would be to run a wash program while checking under the washer. Check the salt compartment nut first though! There is still the possibility that your fault is in the control module and the leak is too small to cause a problem, but we'll get to that . . .

  • jonathan91 Nov 12, 2010

    It has just done a full cycle without any problems.
    I have checked the salt container and the washer and nut seem fine so I don’t think the problem is there.
    I will see how it goes on the next couple of days and then post back.

  • DILLIGAF
    DILLIGAF Nov 12, 2010

    Good to hear it's running again. This means there is no control module fault, but there is definitely a leak which is activating the anti-flood protection. The severity of the leak can be determined by how long it takes before the problem returns, but don't forget that a small leak can quickly become a large one, so I would advise further investigation when possible. I check messages several times a day, so please post back if/when the problem returns and you need further assistance. BElectric

  • jonathan91 Nov 12, 2010

    Thanks for all your help
    Very busy over the weekend as we have 2 young children and they take up a lot of my time, so shall not get a chance to look at it until next week probably Tuesday or Wednesday.
    Will keep you informed what I have found.

  • jonathan91 Nov 19, 2010

    Did not get a chance to take the side off the machine earlier this week, but had been working fine that is until last night. We set it to come on about 5am at 1am our fuse box tripped out the RCD. It was the dishwasher.
    I have today removed the right hand side cover and yes there is water in the bottom, around the pump there is some lose corrosion, I think it is where it attaches to the plastic section.
    I need to get access to every thing underneath and then remove the pump etc.
    Please can you advise in what order I should do this.

  • DILLIGAF
    DILLIGAF Nov 19, 2010

    Hi Jonathan. Just got your message. From your description, I think you're talking about corrosion around the recycling outflow from the pump - the waste hose attachment to the pump isn't visible with the right side panel removed. Therefore, I have to inform you that repairs related to the pump are the most awkward on the washer and I DON'T recommend this as a DIY fix. However, I realise that you are probably going to attempt it, so I will assist you in getting access to the pump area, but I recommend you try to obtain a service manual first and I accept no responsibility for any damage or costs resulting from this repair. Access to the pump for servicing/removal can only be done from the bottom of the washer, but before doing this, you should do the following: [1] Re-attach the right panel (for rigidity) and drain the water from the bottom of the washer by tilting backwards as before. [2] Remove the right panel again and run a wash cycle while inspecting under the washer to confirm the source of the leak. If you are CERTAIN you know where the leak is coming from, you can skip this. [3] Re-attach the right panel and disconnect the power and water supply. [4] Lie the washer on it's left side when facing the door - I recommend you get someone to help you with this as the bottom of the washer can slip out when it's tilted. [5] Remove the screws around the edges of the underside steel panel and remove it. I think it's a T20 Torx/T-Star screwdriver to remove these screws, but I assume you've got one as you've already removed the right panel. The float may drop out when you remove the underside, but this can simply be slotted back in before re-attaching the underside. You should now have access to the pump area. You can also remove the right panel again if you need access from that side (it should now be facing upwards!) but you should leave this in place whenever possible to maintain rigidity of the unit. The kick plate under the door can also be removed if required - there are 2 (T20) screws at the front which are only visible with the door folded down, but it's easier to remove this when the washer is upright. Removing the kick plate doesn't really give much better access, so I would leave it on unless you absolutely need to remove it. That's about all I can help you with at the moment, but I will checking messages regularly for the rest of the evening and all weekend so post back whenever. Also, if you need parts, I recommendhttp://www.ukwhitegoods.co.uk as they have good stock, deliver quickly and are very helpful if you have any queries about parts or are unsure which parts you need. Good luck! Regards, BElectric

  • jonathan91 Nov 19, 2010

    Thank you for you answer.
    The bottom panel is solid plasic with no removale sections.
    I beleve I have to loosen and remove the right hand screws from the Stainless stee container and plasicbase and raise the right hand side of the container upwards about 4cm to get enough access to the pump. Then press the catch to the right side of the circulation pump and rotate the pum to remove it. The replace the seals.
    The only dificulty I ever have with diswashers is in which order and what I need to re move to get access to the faulty parts. Rather then strip them down completly.

  • DILLIGAF
    DILLIGAF Nov 19, 2010

    Sorry, I didn't intend to imply you weren't capable. If I really thought that, I would have simply said "get an engineer" and offered no information. Having read your description above, I cannot recall having worked on that particular Bosch model anyway so I can't offer any more specific advice on your repair but I'm willing to answer any general queries you have. You can also refer to previous posts on FixYa related to this model and the forum section of the supplier I recommended above is very useful.

  • jonathan91 Nov 19, 2010

    Thanks for all your help it is much appreciated. Will let you know how I get on.

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