My bunn coffee's spray head does'nt stay screwed in, i've lost 2?

Depends on your model. The smaller pour over units are easy as you prep your funnel with coffee as normal and get a full pot of hot water (just brew the water through the brew head and funnel to fill the pot.) If you have another pot or carafe, air pump pot. Then hold the coffee filled funnel (with coffee filter) over the empty pot and slowly pour the hot water over the coffee grounds. Go slow as you don't want to burn your other hand nor get grounds into the pot if you over fill the filter.
* If this is a 1-1/2 gallon brewer then the missing shower head won't mater that much as most of the 'flavor' is extracted in the first 1/2 gallon with the rest just filling the urn. If you do find the coffee to be weak then perform 3 separate 1/2 gallon brews to allow the grounds to fully soak and extract. Again, you can still do it manually as described above but it does get messy and very slow. (I've done this just to get something out to the customer. Well until I could get the repaired brewer up and running.)
* Most of the Bunn decanter brewers use a quarter size screw on spray head. No real substitute, though you could try a stiff sheet of aluminum foil to cover the coffee grounds in the funnel and poke holes into it. Though more than likely one of the waiters will dump it on the next brew.
* On one occasion (during lunch rush) I had to wait on a repaired urn to heat up but the waiter's needed coffee now! I took a pour over small brewer and made a pot with 1/2 gallon strength coffee and poured it into a larger urn then brewed more 'partial' batches till it was full. Hey, got to do what needed to get it out.
* You should always check with your coffee vendor as spray heads are very common parts and available at your local restaurant supply. There are other brands that use the same parts too like bloomfield. Ask around as this is a fairly cheap part.
Aloha, ukeboy57

First thing to check is that there is no blockage in the funnel. Next thing is check the spray head and make sure that it is not limed up. After removing the funnel there will be a round silver head that screws in above the funnel, it can be removed by hand but usually you need a pair of channel locks. If so you can clean the spray head with a wire brush. Also if that is not an issue you can purchase a deliming spring from http://www.google.com/imgres?imgurl=http://ecx.images-amazon.com/images/I/21IeXJoqjnL._SL500_AA300_.jpg&imgrefurl=http://www.amazon.com/Bunn-Commercial-Deliming-Spring/dp/B0032QNRH2&usg=__mJkJExy1qExfrZEEbtxW6EAQGSw=&h=300&w=300&sz=5&hl=en&start=4&zoom=1&itbs=1&tbnid=tHf1BPtEJIafsM:&tbnh=116&tbnw=116&prev=/images%3Fq%3Ddeliming%2Bspring%26hl%3Den%26gbv%3D2%26tbs%3Disch:1
WIth the deliming spring you need to remove the spray head and simply run the spring through the hole til you hit the water in the tank and pull it back and forth about 4 or 5 times. Also something siple make sure there is only one coffee filter it is easy to put two in. Hope this helps.
www.midstatebeverage.com

THe most likely answer is that the tube that leads to the sprayhead is clogged with lime. You will need to remove the spray head wich is located above the brew basket and make sure the holes are not clogged with lime. Use a wire brush to clear them. In the field I would use a deliming spring but you may need to go to a lowes or home depot to find a tool you can use to clear the tube wich is what the spray head screws onto or just goole deliming spring and try to order one off line. It is a long flecible very tightly wound dpring about 14 inches in length or so. www.midstaebeverage.com

I work 4 BUNN and we have a flow restrictor sprayhead that might help. If you send me your address we can send one out to you.

Hi - Unplug your machine and let the water cool; unscrew the sprayer head, then turn the machine upside down over your sink. The water will drain from the hole where the sprayer head screws in.

Hope this helps!

Hello this coffee maker has a one and a half gallon internal tank, could be one of a few problems, first thing to check is the spray head, unscrew this you may need some channel locks to get it off and check it..use a tooth pick to clear the 6 holes with any lime that may have formed...also if you use a commercial coffee company for your coffee they should have supplied you with a spring to clean the spray head tube. After checking these 2 items the next thing to check is there enough water in the tank..when the vpr is left on and not used for a few days the water in the tank evaporates..it takes approx two and a half pots of water to fill up the internal tank...try pouring another pot of water in...also turn machine off and take the 2 screws out of the top and see if there is lime blocking the drain hole in the fill pan. Hope this helps...please feel free to comment again if you have any other questions...Good Luck!!! Mike

clean your spray head by removing it and at the same time run the cleaning spring up through where the spray head screws to. before replacing spray head place your pot under and pour a pot of water through,to rinse.when done replace spray head .wait for it to heat up and your set to brew again...

take the spray head off, should have 5 holes clean it out and run the cleaning spring through where the spray head screws to.

There is a timer located in the top of the machine. Take off the two screw and turn the timer down a little bit.