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EM6910 control panel lights will not come on!

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  • #16
    Originally posted by noidle22 View Post

    I apologise, I wrote that reply many years ago when I knew very little about the Sunbeam machines. I don't know why i wrote so much when it could have been simplified.

    To correct my errors, the "white button thing" is the thermostat which only activates if the thermal fuse for some reason doesn't blow. Sometimes they can be faulty and intermittently go open circuit.

    Yes, the thermistor is around 90-100k at room temperature.

    The thermal fuse is in the white tube mounted to the side of the thermoblock with blue wires coming out of either end. This is the most common failure.

    If the thermal fuse, thermostat and thermoblock element are ok, it may be the thermoblock control relay on the PCB not switching on. This will necessitate a PCB replacement as the relay can't be readily sourced. I've searched for them but haven't been able to find a supplier.

    Another thing to check, your machine is an EM6910 and not an EM7000 right? The EM7000 commonly shorts the steam thermoblock relay which can also blow the thermoblock fuse.
    I wrote a reply outlining the repair here: http://coffeesnobs.com.au/brewing-eq...ing-water.html
    After searching and reading every post I can find and still not finding my answer your responses seem very knowledgeable and professional so I'm here for advice .
    We went from an EM6910 to an EM7000 and havnt looked back . However I never got rid of the 6910 that failed for like the 3rd time ( 6 doubles a day for 7 years ) and now in lockdown I'm attempting a resurrection so I can put it in my van .

    Turn on and steam thermoblock heats up but group head does not . I have removed the top and sides etc . Pipes to group do not get hot and machine never gets ready and just has a flashing green light. Thermo fuse replaced but steam thermoblock works anyway . Should I start another thread for this ?

    Where should I start? Thermostat ?

    Thanks in advance .


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    • #17
      Originally posted by Slider43 View Post
      After searching and reading every post I can find and still not finding my answer your responses seem very knowledgeable and professional so I'm here for advice . We went from an EM6910 to an EM7000 and havnt looked back . However I never got rid of the 6910 that failed for like the 3rd time ( 6 doubles a day for 7 years ) and now in lockdown I'm attempting a resurrection so I can put it in my van . Turn on and steam thermoblock heats up but group head does not . I have removed the top and sides etc . Pipes to group do not get hot and machine never gets ready and just has a flashing green light. Thermo fuse replaced but steam thermoblock works anyway . Should I start another thread for this ? Where should I start? Thermostat ? Thanks in advance .
      Which thermal fuse did you replace?

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      • #18
        Originally posted by LeroyC View Post
        Which thermal fuse did you replace?
        The one that sits on the steam thermoblock as after reading lots of posts this was often the culprit and I had a spare.

        Is there another thermal fuse ? If so where is it located ?

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        • #19
          Originally posted by Slider43 View Post
          The one that sits on the steam thermoblock as after reading lots of posts this was often the culprit and I had a spare. Is there another thermal fuse ? If so where is it located ?
          Yeah it usually is the steam thermoblock thermal fuse, but there’s one on the brew thermoblock as well which is more likely to be the problem than a thermostat. I think a faulty triac on the PCB can cause this issue as well. This doesn’t always need to be replaced, but should be checked for condition. If you fill the water reservoir through the top sometimes a bit of stray water can spill down onto the PCB and cause problems. Checking for corrosion and drying it out is a good place to start. Beyond that we’ll need input from resident experts such as ‘noidle22’ or ‘Xanthine’.

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