Mr. Coffee SKX23 Repair
After 5 short years, my uncle's coffee maker activated its' "planned obsolescence" feature by venting a 220uF 35V capacitor (C2), resulting in the burning open of a neighboring resistor (R3):
http://i.imgur.com/9RfZatim.jpg http://i.imgur.com/t02Z2aom.jpg Unfortunately, there's no schematic available for the "CG7-LCD-DRV" power board that this and various other coffee makers use. Does anyone have a comparable working unit to confirm the resistor value? |
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I thought, I have a Mr. Coffee with the timer board, but it turns out to be a Black & Decker Smart Brew. I'm going to take it apart and see if the board is the same and get back to you. :thmbsp: |
Looks like a brown, brown, brown to me! ;-)
Does the resistor measure open? If not, what is the reading? Can you follow out the schematic? Maybe we can do some guess work, get within a range. Then maybe try a pot and see if it works OK. I've had two timers blow on coffee pots, so I made a timer and got a dumb coffee pot. Of course, the planned obsolescence feature was smarter than me and the dang power switch gave it up. No defeating the planned obsolescence feature! I bypassed the switch and have to use the timer I made to turn it off. |
This is why I won't buy a coffee maker with a timer in it.
I have a Cuisinart no timer model they quit making over 10 years ago, and a couple more makers for backup - Hamilton Beach 49316 no timer units Fry's runs on sale sometimes for $10 or so. They all use the #4 cone type filter I much prefer. |
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Probably the best thing is to hit the thrifts for a simular unit. A lot of times, they get donated when the caraffe gets broken. :scratch2: |
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The one thrift, I generally go to, has a shelf of carafes, as well. From year to year, they seem to change the dimensions of the carafes, so many times they don't seem to fit right. Even with the same make. :sigh: |
measure the dam thing center to both ends, one way there should be a reading,
then double it. Even if you have to cut it in half with a dremel & cutting wheel. My Mr. Coffee died of hardening of it's single artery. I got now the wife's older procter-silex, no timers on either one, I herd about them and fires back in the 80's so I'm chicken of them forever now.... I run vinegar through them with each use now to keep calcium from building up. The old one leaked and the calcium build up made it take 40 minutes to make a single pot of coffee...... Built up over time so it was not noticeable But now at about 4 minutes to make a pot, wow how did I not notice it before..... """ After 5 short years, my uncle's coffee maker activated its' "planned obsolescence" feature ....... """ Priceless ! ! Get a schematic from http://oemplannedobsolescencedevices...ers/index.html . . |
^That did the trick: it's a 1.2K Ohm resistor!
I've installed the closest I have, a 1.5K (2W), and the unit is up and running. After several passes there have been no issues. Thanks for the contributions, everyone! |
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Good work, a job well done! :thmbsp: |
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The things, literally flew off the shelf for $2.99 each, I bought two. :thmbsp: My home has extremely hard water, furnished by a community well. I run my coffee water through a Brita pitcher to take out most of the hardness. |
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