Question about Bunn VLPF Coffee Maker

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My bunn vlpf coffee maker the water tank is overheating to the point of steam is spewing fro the air release tube... I'm thinking thermostat ?

Posted by scullycd on


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You are correct.Also check the tank for lime.By unplugging and removing top of machine (2) screws and remove fill basin.You can then remove your t-stat probe to check.If it is lime up you can crack off the lime and reinstall it in the tank.If limed up I would suggest de-liming.T-stat part# 4314.0001.

Posted on Feb 11, 2011


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2 Answers

Bunn coffee maker will not quit boiling the water in the tank, what is the solution?

It sounds like the thermostat needs to be change. it is located under the top of the unit. Should be on the left side under the lid. Visit this link to get an idea of the part..

Nov 22, 2014 | Bunn VPR Coffee Maker

1 Answer

After pot of coffee is brewed, the water in the reservoir seems to be overheating. It hisses and continues to come out of the sprayer, and there is a lot of steam coming from where I pour the water in. ...

This sounds like you need the thermostat replaced. Call bunn at 1 800 263 2256 and talk with parts. You need part number 35286.7000. On a VPS the thermostat is in the top of unit. Take the lid off and you will see it. It has a black dial and a silver probe wire coming from it to the top of the tank. It is fairly easy to remove and replace. Unplug the machine first. Unscrew the screw holding the old thermostat in. Then unhook the two wires from it. Take the rubber grommet out of the top of the tank and remove the thermostat and probe(the part that sits in tank) Put new thermostat in. Make sure the new rubber grommet is set at the red mark on the probe wire and then set the bulb into tank. Attach the two wires back onto the new thermostat(does not matter which wire goes where) and secure the new thermostat with the one screw. Make sure the black dial is turned all the way to the left and close the lid. Plug machine back in and wait for it to heat up again. If the water does not heat up enough turn the black dial all the way to the right.

Apr 06, 2013 | Bunn VPS Coffee Maker

1 Answer


Sounds like your timer part #32400.0002.This is the new type timer which replaces the dial timer.Another thing is does this happen when you turn on the on/off switch? I would also check your liquid level probe in top of tank.Always a possibility bad liquid level board.If it only does this when you push the brew button the timer is bad.

Feb 07, 2011 | Bunn VLPF Coffee Maker

1 Answer

The water gets hot and does not perk. There is no lime in the tank or tube and I filled it until it ran out. Is the water temp really crucial to make this work? I turned up the thermostat and saw...

Try using a bunn deliming spring.Remove sprayhead and run thru the brew tube all the way into the tank.If the water is hot the brew tube is partially blocked going into tank.

Jan 30, 2011 | Bunn VPR Coffee Maker

1 Answer

Bunn vpr steams everything out fill hole and nothing comes through copper tube, even after cleaning tube and head.

Fill water tank until water comes out from sprayhead, THEN plug it in it should be OK.

IF the machine keeps blowing steam/keeps boiling the water, The thermostat is defective and must be replaced.

NOTE: If you don't use the machine for a couple days, UNPLUG IT. The water will evaporate if you don't unplug it.

Jan 13, 2011 | Bunn VPR Coffee Maker

1 Answer

Inave a Bunn VLPF coffee brewer, water is leaking out of the top of the heating tank when in the breweing cycle. I can seal it with some caulking, but is the top of the heating tank supose to be...

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.

Nov 12, 2010 | Bunn -O-Matic Corp. 2 Warmer Auto Brewer...

1 Answer

The water comes out warm from both the coffee maker and the hot water tap. I have the BUNN VLPF series. This machine is only 4 months old and has never worked correctly.

Is it still under warranty? Bunn should take care of it for you if it is. Usually if the coffee is only warm it may mean that a thermal limit has tripped. The water stays warm because the tank has a heater blanket that is wrapped around it but you aren't getting any power to the heater that is in the tank.
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Nov 02, 2010 | Bunn -O-Matic Corp. 2 Warmer Auto Brewer...

1 Answer

I have a Bunn VLPF that does not stop at the end of the "brew cycle" but just continues to run and run and run and . . . (you get the point)! Thanks for your help Phillip S. Hull

Hello, you have a problem with the inlet valve or timer. hit the brew button and then once the water starts running through the brew cone pull the plug, if after a couple of minutes the brew stops your problem is going to be with the timer (you should replace it) if the brew does not stop at all then you have a problem with the inlet valve (it has a piece of calcium stuck in the valve) you should replace the valve kit in this instance. You can buy parts from either bunn or a company called holiday house in cali. if you have any further questions please feel free to comment again. Good Luck!! Mike

Sep 28, 2009 | Bunn VLPF Coffee Maker

2 Answers

Bunn coffeemaker steaming and bubbling over when OFF

You need to replace the thermostat and the hi limit switch punch up and get partsthis machine is good for many years

Jul 22, 2009 | Bunn VPR Coffee Maker

1 Answer

Bunn coffee maker leaks water

There are 3 seals in your unit that could cause your problem. there is a silicon seal right under the pour-in tray, and two on the top of the tank. one of those is for the thermostat, the other is for the sprayhead tube. any of these could leak, causing water to come out the bottom of the brewer. One other thing that can cause this is a scale buildup between the pour-in tray and the tank.

Jan 12, 2009 | Bunn VPR Coffee Maker

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