Question about Bunn -O-Matic Corp. My Cafe Commercial Grade Pod

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My bunnomatic commercial coffee maker is overbrewing by about 2 cups. how do i adjust the water flow?

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If this unit is new and it is doing this, contact the company you purchased the unit from. They should make the adjustments needed.

If this is an old unit, and this just started, you may have a scale build up in the water supply. If that is the case, then it needs to be de-scaled.

The system uses a timer and solenoid valve for controling the water supply. If the valve is scaled up, it will not work correctly.

Also change the in-line water filter.

Posted on Jan 03, 2010

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I know that most grocery stores sell a "cleaner" or two next to their coffee filters/coffee makers/kitchen appliances section. These are usually heavily acidic, and will do a great job of cleaining your coffee maker. I've always been wary of acid in my coffee though, so I just use white vinegar. It'll do a decent job of cleaning out the coffee maker. Run a 1:1 mix of water and vinegar through your coffee maker, drain it, then run water through at least twice.

Scaleing/deposits building up in a coffee maker are signs of imperfections in the water. All tap water has it, but if you don't want to worry about it, use bottled or filtred water in your coffee pot. Plus, your coffee will taste better!

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Hello. First , I don't find your Model at, and I have worked on Bunn machines for over 21 years, and don't recall a unit by the Model information you provided. However, from your description, it sounds like you have one of these, single units, here:
scroll down for the parts/service manuals. The problem you describe has 3 possibilities, one is a water pressure/flow problem, caused by a clogged filter, or too small a supply line with too many units all on the same pipe, try only brewing when nothing else is drawing water. Second is scale build up at the tank fittings for the brew solenoid, build up in the hoses, tubing, solenoids, etc. all of which require cleaning. Third is an actual problem with the timer, or the setting switch. It is always cheaper, if you can do the work yourself, and check the first two items, then you can move to an actual part problem. If you have further issues, just ask.

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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.

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Please take a moment to rate this solution if it's what you needed, and thanks for asking here!

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