Uploaded September 2016 | Updated September 2026, 2 weeks ago

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A look inside and fix / repair of the Bunn My Cafe single serve coffee maker.

What makes these fail?! A silly, cheap, air purge pump that also causes most Keurig coffee makers to fail and be thrown away..

BUNN MCU Single Cup Multi-Use Home Coffee Brewer:
amazon.com/MCU-Single-Multi-Use-Coffee-Brewer/dp/B009PLQ5H2/ref=as_sl_pc_qf_sp_asin_til?tag=m0711-20&linkCode=w00&linkId=1e3660cf12a934c28be1f1e9ca787578&creativeASIN=B009PLQ5H2

Barrie House Breakfast Blend Single Cup Capsule:
amazon.com/Barrie-House-Breakfast-Capsule-capsules/dp/B00GC7XWJQ/ref=as_sl_pc_qf_sp_asin_til?tag=m0711-20&linkCode=w00&linkId=4ed21daa67c43997670868cb40455dcf&creativeASIN=B00GC7XWJQ&th=1

Barrie House Ultimate Hazelnut Coffee:
amazon.com/Barrie-House-Ultimate-Hazelnut-Coffee/dp/B00MOKMEU8/ref=as_sl_pc_qf_sp_asin_til?tag=m0711-20&linkCode=w00&linkId=bfaa0481bf0c006c5ec161802f815ed7&creativeASIN=B00MOKMEU8&th=1

Some of the components that make this run:
* Mini Air Pump - 12V - KPM27H - Keurig Coffee Brewer Air Purge Pump.
* ST Micro T4 3570 Snubberless triac - st.com/content/ccc/resource/technical/document/datasheet/cf/95/c3/9d/a2/b7/47/43/CD00002383.pdf/files/CD00002383.pdf/jcr:content/translations/en.CD00002383.pdf
* ST Micro T1635T-8I Snubberless triac - st.com/content/ccc/resource/technical/document/datasheet/group3/55/fe/6d/15/7a/f0/4f/dc/DM00036734/files/DM00036734.pdf/jcr:content/translations/en.DM00036734.pdf
* National Semiconductor LM317K Adjustable Voltage Regulator - futurlec.com/Linear/LM317K.shtml
* MOTOROLA MOC3023 Random-Phase
Optoisolator Triac Driver Output - pdf1.alldatasheet.com/datasheet-pdf/view/5041/MOTOROLA/MOC3023.html
* MICROCHIP PIC18F 24K20 Microcontroller / MCU for Motor Control and Drive - microchip.com/design-centers/motor-control-and-drive/control-products/pic18f

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