Question about Bunn Coffee Makers & Espresso Machines
My original question was ,I have a Bunn G9tl, the motor hums but the rotor does not spin, I can turn freely by hand. Any Ideas? Mr. Thurston was help with the Manuel link but..
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Posted on Jan 02, 2017
Hello. Is the pump working, just not actually pumping? are you cleaning it with the recommended chemicals and frequency they suggest? it may require more often than is being performed. If you ran out of detergent and haven't been cleaning, that is part of the problem. How to resolve the current problem may require removing the pump and taking it apart fully to clean it properly. Depending on the pump, make sure if you take it apart, you pay full attention to all the parts as you disassemble it. Putting it back together wrong could ruin the pump, and I am sure they are not cheap. If you are not comfortable with this contact your local servicer to do this. You can order your chemicals from www.bunnomatic.com, of call them for a supplier. It is cheaper to clean it more often, than replace a pump.
Hope that helped, and thank you.
Posted on Apr 11, 2009
This unit does not use the pump to generate steam, so if the pump is bad (motor works but the pump it drives does not transfer water) you will get steam but no water through the head to the portafilter.
The unit is not user serviceable and at $68 to buy a new one, it is for the most part, disposable.
The pumps on this unit do not like to be run dry as they rely on water as a lubricant. Without water in the reservoir, the pump may fail in a short running time.
Posted on Jun 11, 2009
Try this, under the grouphead, there is a screw and screen, remove those, and check screen to see if it is clogged, when screen is removed press button to brew, if water flows freely then problem is at the screen, if no water flows, then it is on the inside of the machine. You will have to run a descale cycle to clear out machine. Check the folling pic for the screen location.
Posted on Jul 02, 2009
There is a tiny plastic one-way valve in the brass tube on the pump under the top cover that get calcified and stuck when not in use. I used a toothpick to get it out after disassembling the pump and its hoses. Slowly and carefully lay out your parts to reassemble the springs and washers correctly.
Posted on Oct 11, 2010
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