How to repair Sunbeam Minibarista EM4300 coffee machine: pump won’t stop!

[@Hephera]

thanks for the video. Helped me figure out how to get it open. Mine was behaving the same way but no sign of any burning when opened up. replaced the triac and it's working perfectly again

[@Mike-It-Work]

Great you got yours fixed! Thanks for sharing your experience.

[@xelster]

Hi Mike, would you mind sending a link to these special screwdrivers or post how their tip looks like?

[@jaemo83]

Thanks for the video! I actually came here looking for ways to adjust the pump pressure. Might be a long shot, but would you happen to know if this looks possible on this machine?

[@Mike-It-Work]

Sorry I’m not sure how to adjust pump pressure. That may involve modifying the pump or its power supply.

[@allbeit582]

Mine had the exact same problem of pump not stopping. There were no burnt components just a short on the board somewhere.

[@Mike-It-Work]

Thanks for sharing your experience. It might have been a short in the board itself like in my case? I’ve never seen this before and assumed it was some charred remains!

[@allbeit582]

@@Mike-It-Work I also noticed other people with the fault similar to mine so I changed the triac T2 and now it's fixed.

[@ThesoriUK]

can you give me a hand bro i have a mini barista 125v, i always mess around with it by opening and cleaning the lines but last time i didn't descale my machine for over 7 moths (the steam wand was clogged) and when i finally did used a good descale i heard a different sound, in the end the steam wand came back to live but now then i press the single or duo shot the water comes out the head group and also comes out the steam wand. i did descale other 3 times and all the lines are pretty clean but i think the sensor is damaged or blocked but the thing is, i have no idea on how to check that out

[@Mike-It-Work]

Sure no worries. It might be the selector switch. I’m not sure about the 125v but if it’s the same as the one I fixed in the video then it sounds like a degraded switch. I made another video fixing this machine which leaks from top. You can see it in my channel. As the switch also directs water to the wand the same faulty switch would lead to water leaking to the wand as you see. If it is the switch, replacements can be bought from parts suppliers. I show this in my other video. Good luck.

[@ThesoriUK]

@@Mike-It-Work i just saw the video that you are talking about, i will give it a try this weekend, fingers cross that i will solve this issue haha ty mate!

[@ThesoriUK]

@@Mike-It-Work i did open the switch it had a little amount of limescale but i cleaned it, sadly the issue still there, every time i try to get a single or doble shot water comes out the steam wand and the headgroup at the same time, but when i want to use the steam it works as intented. where can i find this part? i live in the uk do you think i can get it from aliexpress or something like that?

[@Mike-It-Work]

When I opened the switch I noticed the steam port had the most deteriorated plastic at the valve seat due to heat damage so it never seals. So if its the same as yours, it explains what you are seeing. I don't see the switch available from UK suppliers when I search the brand and model. Maybe the model number is different there for the same unit? An example Australian supplier is below. I hope you can find a local parts supplier! spares.bigwarehouse.com.au/product_info.php?products_id=2555471