After I replaced the seal on the tank my Bunn is getting extremely hot when the tank is heating the water. It is as the water is trying to come to a boil. I ran vinegar through it to clean it after I did this is when I started having this problem
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Re: Getting extremely hot
It sounds like the thermostat is not working properly. Please get the model and date code located on the bottom of the machine. Then contact customer service with this information. If your brewer is 3 years old or less, it will be replaced at no cost. If it is over 3 years old, then it will be replaced at a reduced cost.
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The Bunn has a little stopper that closes the water drain port in the reservoir while the lid is open. You can see a little white plastic pin protruding up out of the grate with the lid open. When you close the lid, it pushes on that pin which causes the stopper to lift off the drain port, allowing the water in the reservoir to enter the heating tank.
If water is entering the coffee basket BEFORE the lid is closed, then something is wrong with that little stopper. It may have a chunk of debris on it preventing it from sealing, or it may be deteriorated, torn, disconnected, etc.
Only way to know is to remove the the screws in the grate and pull the top off exposing the reservoir, and the stopper assembly. The little plastic flapper disc should be seated in the reservoir drain port. It should be relatively flat (not wrinkled) and covering the drain port completely. Test it by pouring some water into the reservoir. If it drains out without you activating the stopper, then a repair is needed.
Move the lever up and down and check its operation. The arm must move freely and close when released. There should be no dirt or debris on the sealing surface of the flapper nor on the sealing surface of the drain port. Gently clean with vinegar as necessary. If the seal is damaged, then a replacement is required.
If you haven't used a replacement carafe, then it is probably a clog in the drip orifice, at the bottom of the basket. Note: don't put hot water in your coffee maker as it will perk faster and cause an overflow. Only use cold water. If you have replaced the carafe then it is probably the wrong size.
there's probably a 'silicon rubber' hose that feeds hot water to the 'grounds basket'- it may be loose, or damaged. is it leaking water, or coffee?? we have a bunn 8-cup, which has a pre-heated water tank that brews a pot in about 3 min. energy waster, but when you need coffee, you need coffee!!! is your filter holder properly centered? is the carafe lid hole clean and un-obstructed? if it's leaking water, and not too costly to replace- you may consider replacing it with a new one! good luck!
It sounds as though the thermal cutout has been put to the test and it didn't pass. I would advise you to try to get the company that the repairman works for to replace the entire machine, after all it is brand new and changing parts at this venue could void the warantee.
The first pot of water you put in the coffee maker just fills the water tank which is then heated up , once it gets to temperature you then pour second pot of water this pushes the hot water out of the tank through the coffee grounds into the waiting pot. This way you can make coffee faster than a regular coffee maker.
The thermostat or tank heater is not working properly. Please get the model and date code located on the bottom of the machine and contact customer service. If your machine is 3 years old or less, it will be replaced free of charge. If you machine is over 3 years old, it will be replaced at a reduced price.
You can check to see if the switch on the side of the tank is turned on and is working, but if the problem is with the tank heater itself, you can't get replacement parts for this model unless you can find a broken one at a garage sale or a Bunn service center. You can obtain a list of service centers in your area from www.bunn.com
The pour-over type of Bunn coffee brewers require several pots of water to fill an empty tank. 1. While unplugged, pour in two and a half to three pots of clean water (put an empty pot underneath the brew basket). When the tank is full, water will come out of the brew basket. 2. Plug the unit in and wait for it to heat - about 5 to 7 minutes. These brewers are meant to be left plugged in all of the time to keep the tank water hot. You will probably heat some rumbling noises which is normal as the water heats.
If for some reason the water isn't hot after 10 minutes you will need to check the thermostat. Unplug the machine and take the screws out of the top. The thermostat has a little dial or a t-bar that you can turn. All the way left is off and all the way right is boiling. Turn this up about 90% of the way and put the top back on the machine and plug it in. If it gets hot, you are ready to brew. If it doesn't get hot, you may have blown the limit thermostat and will need to replace it.
The limit thermostat isn't the same as the thermostat. It is a ceramic and metal item that senses if the tank gets too hot from having the unit plugged in without any or enough water in it. It is inexpensive and relatively simple to change.