Announcement

Collapse
No announcement yet.

EM6910 not heating up/double shot light only working when machine is turned on

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • #31
    Originally posted by Karyn View Post
    Is this image any better? Thanks for your thoughts, not easy to diagnose from a distance. Replacing the board might be the way to go, then see if there's anything else needing doing once we have.
    Thanks again.
    [ATTACH=CONFIG]22364[/ATTACH]
    That's fine, most of them look like that.

    I just reread your initial post. I'm fairly sure that the double shot light being on solid and the machine not operating is the board not receiving a response from the brew thermoblock thermistor in a preset amount of time. This is a very rare fault, I can only remember seeing it once before and it was a circuit board problem then, not a thermistor. They are very reliable.
    Given the array of other problems you have, I would definitely suspect the board.

    The boards themselves are covered in a conformal coating that will protect most of the circuitry from water damage. This also means the likelihood of it being a dirty contact or corroded wire very slim. I don't recall any situation where a component or wire has had water damage.

    I also noticed you posted previously that you had a leak from the hot water tap and poor steam performance. The water tap leak is from the needle valve. It's reasonably cheap to replace. The poor steam can be a time consuming task.
    Most likely the steam thermoblock has scale in it causing it to not operate efficiently. It can be descaled and usually comes back ok. Sometimes they just don't recover very well.
    It's also possible the steam pump could not be working properly..

    I'd definitely take it to a service centre for appraisal at this point.

    Comment


    • #32
      Thanks. Interesting it's a rare fault, but good to know it sounds like the board.

      That's great about the needle valve. The steam was playing up a while back so descaled it and it was as good as new. I did wonder at the time if the pump was on its way out, but maybe descaling again will help.

      Called LTC electrical today, and they'll take a look at it for only $35, so was pretty happy with that. Will see what they find once I've sent it in to them, and let you all know.

      Thanks again very much for your help.

      Originally posted by noidle22 View Post
      That's fine, most of them look like that.

      I just reread your initial post. I'm fairly sure that the double shot light being on solid and the machine not operating is the board not receiving a response from the brew thermoblock thermistor in a preset amount of time. This is a very rare fault, I can only remember seeing it once before and it was a circuit board problem then, not a thermistor. They are very reliable.
      Given the array of other problems you have, I would definitely suspect the board.

      The boards themselves are covered in a conformal coating that will protect most of the circuitry from water damage. This also means the likelihood of it being a dirty contact or corroded wire very slim. I don't recall any situation where a component or wire has had water damage.

      I also noticed you posted previously that you had a leak from the hot water tap and poor steam performance. The water tap leak is from the needle valve. It's reasonably cheap to replace. The poor steam can be a time consuming task.
      Most likely the steam thermoblock has scale in it causing it to not operate efficiently. It can be descaled and usually comes back ok. Sometimes they just don't recover very well.
      It's also possible the steam pump could not be working properly..

      I'd definitely take it to a service centre for appraisal at this point.

      Comment


      • #33
        Originally posted by noidle22 View Post
        That's fine, most of them look like that.

        I just reread your initial post. I'm fairly sure that the double shot light being on solid and the machine not operating is the board not receiving a response from the brew thermoblock thermistor in a preset amount of time. This is a very rare fault, I can only remember seeing it once before and it was a circuit board problem then, not a thermistor. They are very reliable.
        Given the array of other problems you have, I would definitely suspect the board.

        The boards themselves are covered in a conformal coating that will protect most of the circuitry from water damage. This also means the likelihood of it being a dirty contact or corroded wire very slim. I don't recall any situation where a component or wire has had water damage.

        I also noticed you posted previously that you had a leak from the hot water tap and poor steam performance. The water tap leak is from the needle valve. It's reasonably cheap to replace. The poor steam can be a time consuming task.
        Most likely the steam thermoblock has scale in it causing it to not operate efficiently. It can be descaled and usually comes back ok. Sometimes they just don't recover very well.
        It's also possible the steam pump could not be working properly..

        I'd definitely take it to a service centre for appraisal at this point.
        G'day Noidle22

        A quick note FYI - I have actually seen two newer (2013 and 2012?) type 6910s with major water damage on the main board - plus plenty of corrosion. As SB did a mountain of "6910 changes" (even the frame is different) around 2010 perhaps that is among the list. I also know SB did a bit of cost saving around then, so perhaps the hot water can "cut through" the protective layer on the newer ones. I just keep getting earlier ones for rellies / friends if I see them going cheap and avoid the newer ones.

        Ironically, one of my friends 2006 6910 copped a major flood (muddy river water to ceiling level) and a rinse & dry fixed it about 4 years ago. It still looks OK.

        Enjoy your cuppa - I just have to get to the mountain next October...

        TampIt

        Comment


        • #34
          Soo? Who dun it?! Inquiring minds want to know :P

          Comment


          • #35
            Originally posted by inorog View Post
            Soo? Who dun it?! Inquiring minds want to know :P
            I'd love to know too :P No real update as yet sorry, have to send it off to LTC electrical and haven't yet had the chance to pack it up -well beyond sick of plunger coffee though, so will get onto it over the weekend. When I spoke to them on the phone they agreed it sounds like the board. Will be sure to update when I have more news.

            Comment

            Working...
            X