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My new cuisinart 12-cup coffee maker CHW-12 hot water reservoir does not hold any water. It comes right back out of a metal drain tube on the bottom of the machine. What should I do? It almost seems..

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Contact Cuisinart directly and explain the problem. The machine may be defective, though new.

Posted on Apr 21, 2017


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The hot water system on my Cuisinart CHW 12 coffee maker comes on by itself. I have unplugged and replugged the power cord. I have also drained the reservoir and refilled it. What can I do to keep it from...

Try leaving the device unplugged for 30 minutes before trying again. In older Cuisanart coffee makers it took that long before the internal computer would reset itself when electrical power is reapplied.

If the problem persists and you have verified the controls are set properly then likely the heater circuit control has failed.

Dec 09, 2017 | Cuisinart Coffee Makers & Espresso...

2 Answers

Why does it leak water out of the bottom?

I own a Black & Decker (Applica) 12-cup Smartbrew Coffee Maker DCM2000 (see link). Mine started leaking water out of the bottom when brewing. I was able to remove the non-security screws and pry open the plastic bottom to see what the problem was.
Smart Brew 12 Cup Coffee Maker

In my case, the silicone hose running between the water reservoir and the heater/pump had become brittle over time and split where it met a metal tube.

There are two of these silicone tubes in the Smart Brew 12 Cup Coffee Maker DCM2000. In the third photo below, you can see the bottom/inside of the coffee maker with the faulty tube missing.
Replacing a silicone tube - easy. Getting the bottom completely open... not so much.
In order to get the bottom completely off, I used a bolt cutter on the security screw.

I was able to buy a length of the following hose (from ebay):

Silicone Tubing - High Temperature rated AND Food Grade
3/8" Inside diameter x 1/2" outer diameter

It's important to get the inside diameter correct, or the hose will not grip tight enough to stay in place/form a seal. I measured the original to get the appropriate I.D.
The hose must also 100% silicone, food grade, and rated for high temperatures. Beer stores and brewing supply companies typically carry this kind of hose. I got mine from ebay.

I cut the silicone hose to the proper length with a utility knife and slid it over the two receptacle ends - one end of the metal "U" & the round plastic socket leading into the water reservoir.
I put the bottom back on, attaching the regular Phillips screws.

I've had leak-free operation ever since.
The hose cost me a bit more than expected, because I couldn't get it locally and shipping costs in/to Canada are a complete rip-off - but it was still a fraction of the cost of a brand new coffee maker.

leak-water-out-bottom-at5g3macwqtmzvkaw0snxryv-2-0.jpg leak-water-out-bottom-at5g3macwqtmzvkaw0snxryv-2-3.jpg leak-water-out-bottom-at5g3macwqtmzvkaw0snxryv-2-8.jpg

Nov 06, 2014 | Applica Black And Decker 12 Cup...

1 Answer

Cuisinart CHW-12 goes dead before completing brew. No lights, no clock- just dead as if a fuse were blown, but outlet is still live.

My first guess would be that the control panel above the carafe has a thermally sensitive component or poor contact that acts like a fuse when it heats up but is fine after a cool-down. If this is the cause, disassembly and detailed inspection are required. If you're handy with a low-wattage soldering iron (30W), you could resolder connections on on the controller.

My second guess would be that there may be an over-temperature circuit in this unit that removes power if the unit gets too hot (you don't want a fire and Cuisinart has has some history here). If this is the cause, there is a failed thermostat in the heating system.

Sep 29, 2013 | Cuisinart CHW-12 12-Cup Coffee Maker

1 Answer

Coffeemaker shuts off in the auto brew cycle

Your Cuisinart coffee maker probably is defective, though new.

Jan 10, 2018 | Cuisinart Chw-12 Coffee Plus 12-cup...

1 Answer

Leaks water out overnight

I bet it leaks from the back, right? If it does, it has the same problem as my dad's.
You have a leak in the back of the holding tank. Fill it up, turn it around, without plugging it in, and watch for the water leak. If it's in a spot that you can see, then use some caulking to seal the leak. That should work. If not, it is leaking out from inside the plastic holding tank. Not much you can do but buy a new one.

Mar 01, 2009 | Cuisinart Brew Central DCC-1200W, 12-Cup...

1 Answer

Cuisinart DCC1000 coffee maker

At the bottom of the reservoir there is a hole the water flows through to the heater. When my coffeemaker did what yours does it was because a little valve that sits in that hole had popped out, and after tamping it back in it solved the problem. The valve is supposed to keep the hot water from going back up into the reservoir. Without it the water backs up, causing the steam to shoot up as you know, and heats up the water in the reservoir. This causes the thermostat to turn it off prematurely. The valve can come out of the hole either if the coffeemaker is turned upside down, or if there is a major buildup of mineral deposits that need to be flushed out -- they can overheat and cause too much back-pressure to the valve. Flush it with vinegar and push the valve back in as tight as you can, then be careful if you turn it upside down.

Jan 26, 2008 | Cuisinart Brew Central DCC-1200W, 12-Cup...

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