Cuisinart dcc-1200: do I have to use the charcoal water filter?

SOURCE: Cuisinart DCC-1200 BW Model leaks

Order 1 foot of 5236K73 "High-Temperature Silicone Rubber Tubing" from McMaster-Carr. Put the old check valve in the new tubing in the same location and direction as originally installed.

SOURCE: Cuisinart Dcc-1200 coffee maker is gurgling a lot,

I had this same problem and found that coffee grounds had somehow gotten in to the water reservoir and had been circulating thru the machine clogging the charcoal filter. This must have prevented the water from entering the heating chamber efficiently and therefore continued to gurgle until it all got thru. I flushed out the reservoir by holding the pot upside down and shooting water into the reservoir. It took some time to get all the grounds out. I took out the charcoal filter, flushed out that section and replaced it with a new filter. When finished, I ran thru a solution of white vinegar for good measure and bingo!! The coffee pot works perfectly.

SOURCE: where is thermal fuse in cuisinart dcc-1200

The Cuisinart DCC-1200 doesn't appear to use a thermal fuse but instead seems to use a NTC Thermistor. Like thermal fuses this is clipped onto the bottom heating element and has two yellow fine lines leading to the control board. It should measure ~220k Ohms at room temp and drop its resistance to <20K ohms as water boils. This Thermistor looks and behaves a lot like a Vishay NTCLG100E22245B [220KOhmn] which is available through DigiKey [BC2467 part number; $0.52]