Wehn I refill the reservoir of my Bunn coffee maker, it makes a loud, kind of loud boiling sound, almost popping..it is still working fine but I wonder if it is the heating element starting to go out. Or does something need cleaned? I think it is about 4-5 years old. It is a 10 cup home model.
THis sound is usually caused by the water being low in the tank. This can be because the machine is left on for long periods without being used. If this is not the case, then it would probably be your heating element getting small holes in it.
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Actually I found out it was needing a good dose of vinegar. When I cleaned it well, it quit making sounds and works perfectly. In the meantime I had bought a new Bunn but kept it in the box until the old one gave up the ghost. Thanks for you help. My coffee pot never seems to get left on long without making coffee as we always turn it off when out of town.
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