The Bunn coffee maker does not operate as most coffee makes do. You cannot leave the Bunn in the off position and then just flip the switch to on and pour the water in. You will always get cold coffee if you do this. It takes time for it to heat the water. The On/Off switch should be left in the On position all the time. This keeps the water hot in the tank, thus providing hot water when you need to make coffee. You then just pour the cold water in the top, shut the lid, and have a pot of coffee in 3 minutes. The On/Off switch is a vacation switch, and you use it only when you are not going to use the coffee maker for a couple of days. Older Bunn coffee makers did not even have an On/Off button. You simply unplugged them when going on vacation. So turn the switch to the On position and leave it there. The unit will then work as designed. Forget how other coffee makers work, this is a Bunn and it is the fastest coffee maker you can buy and must be left on all the time. that way the water stays hot and the unit will keep it that way.
Forgot to mention that before you ever turn the switch to the On position make sure the storage tank is full of water.
Now, If I am misunderstanding your question and you are saying the switch was on for at least 15 minutes prior to you pouring the water in then you either have no voltage to the coffee maker, as in a GFIC receptacle being tripped, or the heating element in the tank is defective. Make sure the GFIC receptacle is working and has not tripped in your kitchen.
Is the defective heating element in the tank covered by Bunn?
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Hi
I believe the issue is with the water inlet valve assembly
going bad and should be replaced, this unit has two valve one for cold and
another for hot. You can test the valve first if that is fine then check the
pressure switch which is part#4 in this diagram. Hope this helps...please post
back for further assistance.
Daniel
I had the exact same problem with my machine making 1 cup at a time.
Here is the solution:
1. make solution of 1 part vinegar & 2 parts water.
2. pour solution into resivoir and set for 2 hours
3. run solution through machine (yes, you will have to stand there and keep pushing the buttons).
4. take same solution (now very hot) and run it through machine 5 or 6 times
5. make fresh solution and continue process until machine runs full cycle.
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