How to Troubleshoot a Coffeemaker

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By eHow Contributing Writer

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The biggest problem found in coffeemakers is mineral buildup. This stuff not only makes the coffee taste bad but can also affect the function of the machine. Here are problem areas to look for.

Difficulty: Moderately Easy

Instructions

Things You'll Need:

Coffee Makers

Step 1

Unplug the unit before you open it.
Step 2

Suspect one of several things if the water isn't flowing into the pot. The tube could be clogged; the thermostat or timer could be bad; the pump valve could be broken or stuck; or the heater could be broken.
Step 3

Check the keep-warm switch and element if the coffee isn't staying warm once brewed. Also, make sure that the auto shutoff switch is in the correct position.
Step 4

Examine the tube connections and the seals if the coffeemaker steams excessively or leaks water.
Step 5

Make sure the plate that spreads the water out above the basket isn't cracked, clogged or broken if the coffee tastes weak.