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javasurf inc Posted on May 07, 2017
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I have a bunn cwtf commercial brewer that is plumbed into water. Water will not stop leaking out of the plastic water tubing that empties into the water pan. When I put my finger over the metal spigot in the tubing water shoots out the sides so there is definately water pushing up into the tube. I have the machine unplugged yet water still drips out. I know water should not be dripping constantly out of the tube because it only fills when the tank empties. Where is the problem? Why does water continuously drip out 1 gallon every 2

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Mark Cheong

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  • Bunn Master 791 Answers
  • Posted on Jan 18, 2018
Mark Cheong
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Joined: Oct 14, 2013
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The water tube is the tray filler (for brewing). This is the output from the water fill valve which is usually set at a timed interval just enough to fill the tray with water to make a desired brew. There are other units that will automatically sense the proper water amount and fill as needed.
* All of these are on demand systems and should not be filling excess water when not in use. Call your vendor for service.
* Excess water is usually caused by a leaking water fill valve which will need to be replaced. Tip: click the brew switch on and turn off the brewer to stop. Do this several times. You should hear a 'click' then a whine as water fills the brewing tray. Place an empty pot or metal decanter to catch the hot water from empty funnel (no coffee needed) The brew will be higher and will overfill the decanter so keep an eye on it and dump water as needed. What you are doing is possibly dislodging a bit of sand that may have got stuck in the valve thus causing a small leak. Snapping the valve several times may clear it. If not then call for service.
* Some time the timer can get scrambled as the newer units are all digital and get out of calibration or blown out. Especially after a blackout or Electrical storm. Call your vendor for service.
* Auto level probes can get dirty and will need service to clean as it's usually located inside the machine and tank.. Call a tech to be safe.
* Sometimes constant running of Hot water is a sign of a bad heater and/or thermostat. Thermostat may be shorted and boil all water off. Heater could have ruptured and short to ground which boils off water. Both cases will cause the brewer to boil vigorously (Gallop!) then run completely dry. Over heat and trip out breakers and or thermal fuses. Hopefully it shuts down before catching fire. (There are safe guards in place as Bunn equipment are well designed.)
* Finally: Leaks in any form, especially from the body of the brewer will cause an electrical hazard. Call your vendor for service and replacement.
Aloha! ukeboy57

5 Related Answers

Anonymous

  • 136 Answers
  • Posted on Sep 15, 2007

SOURCE: dripping

Is the burner hot when this occurs?

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Steve

  • 3290 Answers
  • Posted on Dec 02, 2008

SOURCE: bunn omatic model F20 doesn't stop dripping

Check out:

http://whles.com/General%20Mtx%20Knowledge%20%20Tony%20Roach/BunnOMatic%20F35%20F20%20F15%20x.pdf

This is the free full service manual F15, F20 & F35 complete with troubleshooting section at the rear. This section has easy, plain english steps to follow to solve this very problem (others, too).

Good luck!

Anonymous

  • 125 Answers
  • Posted on Mar 08, 2009

SOURCE: water drippin from the hot water outlet on a Bunn coffee maker

Hello. If this is the hot water faucet, on the front of the unit, there is a rubber seat that keeps it sealed. Usually it gets a piece of debris, or scale in it with use, or the rubber seat gets worn out and needs replacement. To check, turn off your water, unplug the unit, and drain all the water out of the faucet until it stops, then tilt the unit forward slightly just to get a little more. Now you should be able to unscrew/disassemble the faucet, and pull it out to look at the seat cup, and the faucet interior. If there is scale or debris on the cup, and the faucet interior, it will need to be cleaned, and it may actually require chemicals for scale, if bad enough. If the rubber seat cup is torn, it will need a new one. You can get a new seat at a parts supplier for commercial units in your local area, look in the phone book under "restaurant equipment repair" or go online, plenty of them have a web site. If it is NOT your faucet dripping, we can go from there.

Hope that helps, and thank you.

Anonymous

  • 125 Answers
  • Posted on Mar 23, 2009

SOURCE: Bunn VPS Series Commercial coffee maker won't brew

Hello. I would like to suggest that you pour in water, with a container under the funnel, until water does come out, it sounds like the water has just evaporated too far, and it requires more than a pot to bring it to the top. In the future, if you do not use it for a day or more, you need to unplug it, or just pour a pot of water in to keep it at level, as this unit heats all the time it is plugged in, and can actually evaporate all the water away, blow the element, damage the thermostat, or worse permanently damage the unit.

here you can find the user manual:
http://bunnomatic.com/pages/techdocs/manuals/pourbrew_warm.html

Hope that helps, and thank you.

Anonymous

  • 635 Answers
  • Posted on Mar 11, 2010

SOURCE: BUNN VPR commercial coffee pot, not flowing in a

Your spray head has 5 to 6 little holes depending on the model and year, and it looks like you have scale, calcium or lime blocking them.
Since your model is a VPR pour model, you will have less trouble cleaning it with white vinegar than the permanent water connection type. I use a gallon of vinegar and filters for this.

Parts needed:
2 Clean, Rinsed Empty coffee cans
1 Gallon of White vinegar
5 coffee filters
1 Toothbrush, preferrably angled head

Start with your Bunn turned off and place an empty full size coffee can under the pour spout. Now place a filter in the brew basket to catch any fine particles you don't want poured back in the resevoir and heater. You will need to change this filter a few times as the trash starts coming out of your spout.

With the coffee can, brew basket, and a fresh empty filter in place you want to start pouring the vinegar in the tank while catching the water with the coffee can. As it fills with water you will need to dump the can down the drain until the full gallon of vinegar has been poured in the Bunn. Allow the excess water to finish flowing out into the coffee can making sure to leave half the water in the can to pour back into the coffee maker.

By now your tank should be filled with mostly white vinegar, and your coffee can should be at least half full of vinegar as well.
Now you can turn on the lower pot warmer to keep the solution hot and plug your Bunn into the outlet.

Allow 8 to 10 minutes for the heater to heat up and pour the half full coffee can of vinegar into the fill area. Allow the cycle to complete and replace the filter as needed, or if flow begins to slow down.
If your heads are clogged, use the toothbrush to clear the holes as the vinegar is flowing until you see all holes flowing vinegar.

Chunks of trash will dislodge in your heater tank and flow to your spray head, so keep that toothbrush ready.

Do this at least 5 times, then allow the Coffee maker to sit 30 minutes with the heater on to finish dissolving the lime and calcium deposits in the tank.

After 30 minutes start flushing the system with clean water to rinse out all of the vinegar, or until you can no longer smell vinegar in the coffee can.

Good Luck!

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Related Questions:

0helpful
1answer

My bunn coffee maker leaks at the bottom. Can you tell me what to do

Okay no model given,
* Pour over brewers only leak if over filled (more than a pot). If it leaks just sitting there then there is a hole in the tank. Call for service or replace.
* Commercial machines like CW, CWTF, Single, Dual, Urns, are plumbed into a water line. Leaks may come from the water line, Tank, or urn.
* If the water leak is clear and not hot then it's the water inlet line.
* If it's hot then the heater is leaking,
* If it's coffee colored then it's the urn where the coffee is being brewed.
* In All cases call your vendor for service as this is a hazardous situation. Unplug or turn off the power to the unit. It should be on a large throw switch near any large brewer. Have maintenance turn off the breaker and leave of till the vendor can service.
Aloha, ukeboy57
0helpful
1answer

My bunn will not pump any water into my pot the water is hot the plate is hot but want pump

* If this is a pour over (VPR, VPS, etc.) then you must pre fill it then pour in one pot of water to get one pot of brewing hot water out of it.
* If this has an external tank of water then it must be filled and make sure the float sensor works and pops up to indicate a filled tank.
* But most likely this is a CWTF, CW, or larger commercial brewer that has a plumbed in water line. If this is the case then the tank must be pre-filled and heater turned on. usually done by the vendor or installer. It should have been tested and brewed to check water level of brew. Follow the brewing instructions.
* Still not working? Call vendor for service. It could be timer, brew switch, water level board, water fill valve,brew valve. all need check and service to replace as needed. Many larger units have high voltages so call the tech to be safe.
Aloha, ukboy57
0helpful
1answer

No power

* Check bunn.com for a free download of manual for this brewer.
* If this is a pour over (VPR, VPS, etc.) then you must pre fill it then pour in one pot of water to get one pot of brewing hot water out of it.
* If this has an external tank of water then it must be filled and make sure the float sensor works and pops up to indicate a filled tank.
* But most likely this is a CWTF, CW, or larger commercial brewer that has a plumbed in water line. If this is the case then the tank must be pre-filled and heater turned on. (a switch in the back) Installation is usually done by the vendor or service tech. It should have been tested and brewed to check water level of brew. Follow the brewing instructions.
* Still not working? Call vendor for service. It could be timer, brew switch, water level board, water fill valve,brew valve. all need check and service to replace as needed. Many larger units have high voltages so call the tech to be safe.
Aloha, ukboy57
0helpful
1answer

Commercial Bunn CWTF-DV-3T is leaking water from the top right corner of the machine and now at the base behind the bottom burner when you start a pot of coffee

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
0helpful
1answer

Water is not hot when turn on

check the heat switch in the rear. if it's on, check the thermal fuse in the top right rear of the brewer. it'll be in a now browned tubing. you can get it through bunn (800) 352-BUNN (2866)
0helpful
3answers

Leak from hot water faucet


Replace the water faucet. Contact the company the unit was sold or installed by. they should have the part in stock.
4helpful
1answer

Unit leaks water from bottom bunn pouromatic

What model of Bunn is this? If it is a bx-b or any of the other home models, what has happened is that the plastic pour-in tray has become brittle and cracked where it mounts onto the tank. The only repair for this is to replace the tray with one from another brewer (possibly your local bunn Dealer has an old brewer lying around). If it is a commercial brewer (VPR, VPS, Ect) there will be a sael leaking on the top of the tank.
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