20 Most Recent Bunn CWTF-MV Coffee Maker Questions & Answers


First remove the front panel and there will be instructions fro reprogramming the brewer. If you have done this and it still does not work, then there is a problem with the control board.

Bunn CWTF-MV... | Answered on Mar 02, 2011


Leaking from top of tank; Call for service as this is an electrical hazard.
*** the following is for information only. ***
* Replace any worn gaskets and silicone tubes.
* There may be cracks in the metal pipes. Hard to see, but there, if you remove the lime deposits.
* check the top tray nut if the gasket to the tank is missing. It's about an 1-1/4" round washer with about a 3/4" hole. Usually made of white silicone rubber. It seals the fill tray to the tank. Leaks often.
* Bunn equipment can last quite a few years (decades?) but the gaskets do get hard and the tank needs to be water tight to work properly. Since this is already an old brewer and you've saved money rebuilding it. Suggest going further by replacing all gaskets. Yes they do need to be snug with no cracks.
Aloha, ukeboy57

Bunn CWTF Coffee... | Answered on Jan 20, 2018


delime the sprayhead and reservoir drain (in the top) with a deliming spring or a screwdriver. to delime the tank, put a half gallon of vinegar in the top and catch the hot water as it comes out of the sprayhead. leave it sit for about 20 minutes and brew at least 8 times (w/o coffee) or until you can no longer taste vinegar

Bunn CWTF Coffee... | Answered on Jan 28, 2015


What about Bunn water level? Too high? Too low? Not filling? Leaking?

Bunn CWTF Coffee... | Answered on Nov 25, 2014


Most likely cause is that the seal between the water reservoir and the tank is leaking. Not uncommon. If you can find a replacement seal go for it, otherwise the old one can be made serviceable by coating both sides with a thin bead or layer of clear silicone. Allow to cure for 24 hours before powering the coffee maker back up.

Bunn CWTF Coffee... | Answered on Nov 23, 2014


If its been changed to 220V plugging it into 120V won't damage anything, it just won't work. Replace the plug with a 120V plug end and plug it in. If it works its120 if it doesn't, its either a 220V setup, or you have a blown fuse in the unit/power supply or some other defect.

Bunn CWTF Coffee... | Answered on Nov 05, 2014


the plunger for ur solenoid valve assembly might be stuck in open position ... ur click sound maybe came from ur funnel lock during brewing. water shots from the fill or oveflow cup due to contoniuos supply of water , try to close ur main water and c if water will also cease

Bunn CWTF Coffee... | Answered on Oct 02, 2014


google item and error code, if no owners manual try:
https://www.manualslib.com

Bunn Coffee... | Answered on Aug 20, 2020


Im assuming you tried it more than once and the tank is full when you start? If your doing manual fill pour over the timer has nothing to do with that. If it's plumbed with a water line, before you start changing your timer for the brew cycle, first try the easy fix which is unscrew the spray head. it's the piece the water comes out to the basket. Take the cleaning spring tool and rotate it as you push it thru the tube you just unscrew the spray head from. As your pushing it thru it has two turns in it . Just rotate and push until you have gone thru the second one and then it's clear to the water tank. Unfortunately this doesn't always get it unplugged. Where the tube goes into the water tank there is silicone hub on the part that's in the tank and it can keep some of the lime buildup from being removed. You will have to take the top off and remove the tube to clean it if that happenes. Dont forget to unplug it first. The other common spot for a restriction is where the water leaves the pan your pouring into. You need to remove the pan to get the spray tube out anyway so look also at the big nut that holds the pan onto the tank.sometimes the hole will plug in the center .

Bunn Coffee... | Answered on Nov 13, 2019


test element for failure

Bunn Coffee... | Answered on Oct 06, 2019


Couple of ideas.

Your weak coffee could be due to the machine not getting hot enough, which is usually caused by calcium scale buildup on the heating element (the "burner").

Try descaling with a citric-acid based cleaner, such as Dezcal or Durgol.

The second is the coffee your using is a weak blend. Try changing to a different coffee and see if the strength is better.

Bunn Coffee... | Answered on Jul 15, 2019

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