Bunn automatic coffee maker will only make half a pot, this is a commercial unit with 3 burners

the fill drain is plugged and the water is overflowing. open the top and, using a phillips head screwdriver, poke through the lime buildup in the trough drain until the water goes down more freely.

water tank inlet in the top possibly limed up causing pan to overflow. remove top, use screwdriver or deliming spring to poke through the drain nut in the pan. should work fine now

Remove the front panel there are instructions on changing the level.

Run a pot of half water and half vinegar through the coffee pot and you may need to repeat this process a couple times to get all the calcium buildup cleaned out of the pot. Hope this helps.

If you are pouring water in the manual brew basin, then check the sprayhead holes, then the spray tube, those could be blocked. If using the auto brew, check the solenoid and or brew switch.

Please get the model and date code located on the bottom of the brewer. The machine has a 3 year limited warranty. If the machine is 3 years or less, the machine will be replaced at no cost. If it is over 3 years, then it can be replaced at a reduced cost.

Hello. I need to know if you have an automatic unit, or a pourover. The pourover will not have a timer at all. The difference is you have to pour the water in to get coffee out, an automatic would be connected to a water line, and you just push a start button. If it is an automatic unit, there has to be a timer somewhere to adjust the amount. Here is a web address that has your manual, and a parts breakdown should you need to find where the timer is located.

http://www.bunnomatic.com/pdfs/commercial/manuals/29079.0000.pdf

Hope that helped, and thank you.

The procedure for setup of this coffee maker can be found here -

http://www.bunn.com/pdfs/commercial/manuals/10613.0000.pdf

Please email if you have additional questions.

Make sure you are using the type of commercial coffee pot like the one in the picture. They don't have to have to be plastic with the metal bottom, they can be all glass. The commercial pots are heavy duty and usually disperse the heat well.

If you are using commercial pots the only solution without replacing the warmers is to put three pennies on the warmer and to put the pot on top of them. The pennies will get hot so don't forget and grab them but the pennies help to move the pot just a little way away from the direct heat.