Question about Cuisinart DCC-450 Coffee Maker

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I just bought Cuisinart DCC-450 and the power switch will not turn on -- if I switch it on, it will rock back to the off position as if spring loaded to stay off -- any ideas? I did't bother to keep the box, it never occurred to me such a simple appliance would not work right away!

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There is a defect with your coffee maker. It uses a momentary switch, but is supposed to stay on for 30 minutes. I believe there is a common failure due to heat sensitivity of an IC on the board. I suspect this is a timer chip. See my other posting on this.


Posted on Jan 11, 2010


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Hello, Helen -

This is the link to the manual (PDF format):

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1) Doesn't turn on. 2) Can't remove base plate to diagnose.

I had the same problem.

There are 4 rubber "feet" that conceal additional phillips screws. These feet are easily removed by lightly pulling them out of the screw holes with needle nose pliers.

On my coffee maker, the problem was heat sensitivity with an IC marked "53A3P 512AAC". I was not able to find this IC. If I HEAT this part, the coffee maker will briefly work until the IC cools down.

I would be interested in either finding the board, or IC.

Hope this helps.


May 25, 2009 | Cuisinart DCC-450 Coffee Maker

1 Answer

Cuisinart coffeemaker DCC-450 switch keeps turning off by itself.

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Unplug for 20 minutes or longer to reset. Make sure the lid is on the caraffe, or the brew basket will be stuck in the closed position. If the water still won't go through, consider ordering a new brew basket, because yours might have a faulty spring.

-Tha Mp3 Doctor

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