Beloved Mr Coffee TCX83 refuses duty

[langillt]

My best coffee brewer ever has stopped feeding water into the heating chamber. The problem occured in mid-brew, the heating cycle appeared to terminate normally.

I have looked for a replacement, I really have. A computer tech ought to be able to at least investigate. That led to a puzzle:

The valve from tank to the heating chamber appears to be working in reverse. I can blow air back up into the tank, but the valve locks tight when it apply suction. Perhaps I dont understand the feed process. The heating chamber and piping to the basket sprinkler are open and unobstructed. The silicone feed tubes are open and unobstructed. There are no signs of corrosion or biuldup anywhere. the unit is squeaky clean. The electronics and heater appear fine.

This unit appears to be well made, and certainly is the best coffee producer I ever owned. What am I missing?

Thanks
Terry

[nomind]

Hi Terry,
-look below the heating plate for any kind of 'auto off' device or overheat switch that may have quit. :cool:

Do it Right - Do it once.

[langillt]

The heater assembly comes on every time I turn the unit on. The problem is that no water flows from the tank, and the heater element then shuts down like it should when it runs out of water at the end of the heat cycle.

In other words, heater appears to work fine when it gets water from the tank.

Thanks
Terry