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Bunn VLPF Coffee Maker - Page 3 Questions & Answers
My Bunn coffee maker is making weak coffee
Couple of ideas.
Your weak coffee could be due to the machine not getting hot enough, which is usually caused by calcium scale buildup on the heating element (the "burner").
Try descaling with a citric-acid based cleaner, such as Dezcal or Durgol.
The second is the coffee your using is a weak blend. Try changing to a different coffee and see if the strength is better.
My single cup bunn coffee maker will not brew coffee, light is on. If we plug and unplug it several times, it will work.
Underneath the warming plate is a element assembly that will have 1 or 2 thermal fuses and a temp sensor. If any of these have faulted that condition will arise.
I suspect that the temperature sensor is 'sticking' in the open position. If you remove the bottom cover (while unplugged of course) and lightly tap the sensor with your screwdriver it may remedy the issue for awhile but the initial cause of the problem will still exist. If the brewer is worth it you can replace the sensor otherwise it may just be cheaper to recycle it.
I have a bunn coffee maker that takes over an hour to heat brew water.
Clean a Bunn coffee maker once every three months if you have hard water. ... Unplug the Bunn coffee maker from its power source. Verify the brew funnel is in place in the machine, and set the decanter in the unit as if you were going to make coffee. Add 1 quart of white distilled vinegar to the top of the brewer.
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