Been working fine for the last 3-4 years - suddenly stopped heating water yesterday.
The Bun BTX-B has a pair of thermal fuses located on top of the water heater storage unit. If the pot is left without use for a week or so, the thermal fuses will blow if the top of the tank gets too hot (about 150 degrees Fahrenheit) due to the evaporation of water in the storage tank. The operating directions state clearly that if the unit is not going to be used for a few days to turn off the pot. These are there to prevent a fire in case someone does not follow the direction. This is the "MOST" common form of electrical failure in these pots.
To access the thermal fuse
1. Unplug the pot and drain pot by inverting the pot in an empty sink.
2. Remove the two Phillips screws located under the water fill flipper door.
3. Gently insert a small flat blade screw driver into the front top of the lid and remove top cover.
4. Remove the 4 screws inside the water routing tank and remove routing tank simply by lifting off.
5. The thermal fuse is mounted to the top of the tank under a clip and is easily slid out from under the clip. There is a brown wire (goes to power cord neutral) and a black wire (goes into tank disk access hole). Simply measure with a multimeter at lowest ohm setting, the meter should read continuity between the black and brown wires, if it reads an open circuit, the part is bad.
A replacement thermal fuze assembly kit is available off e-bay for about $10. You can buy individual thermal fuzes and replace one of the two that is bad for about $3, but I recommend the kit for most consumers as it comes with wire crimps already mounted and far easier for the average person to simply install. Repair takes about 5-10 minutes.
Check and make sure the tank heater switch is on, I have had my bunn for many years and heating element is still good *knock on wood*
SOURCE: BUNN Pour-Omatic
Most likely it is your tank heater, but look on the top of the tank heater, because sometimes the wire will burn off the top of the element
SOURCE: water flow has slowed down.
remove the spray head and clean it .also run the cleaning spring through the spray head tube this is what makes them slow down is minerals in the water.
SOURCE: BT-10-B Bunn Thermofresh that will not heat or fill pot
Lots of times minerals clooect on the heating element and inside the heating chamber. The easiest thing to try is to put white vinegar into the filler, displacing some of the water into the pot. Leave this to soak for about an hour, then flush with several pots of water until the vinegar smell cannot be detected in the water. Make sure that the switch on the side is "ON". You may have an indicator light. The switch on the upper front is for the warmer. The reason you only got a partial pot of water is that the reservoir wasn't completely full. Once you have filled it completely, you should fet a full pot out for every full pot in. If all of the above gives you no relief, you may need to test the heating element for voltage and continuity. If it tests 'open', you will need to replace it.
Good luck, --W/D--
SOURCE: My Bunn just stopped working. It does not heat the
Did you check to make sure the switch on the side of the machine is in the correct position-the "I" pushed down and the "O" up in the air and you see orange around the switch? If this is correct, then please give customer service a call at 800-352-2866 with the model and code date.
SOURCE: My Bunn Thermofresh leaks near
If you will call Customer Service with the model and code date on the bottom. If your machine is 3 years old or less, we will replace it free of charge.
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