Bunn Trifecta MB Use & Care Manual Download Page 11

trifecta

® 

 MB   coffee and tea Brewer

9

BREW ChAMBER ChECK vALvE MAINTENANCE

the brew Chamber Check Valve may need periodic cleaning because your coffee 

or tea is pressed through it after every brew.  It can clog causing slow or incomplete 

press out, or particles can stick in the valve causing dripping before press out.

STEp 1 - Cleaning Brew Chamber and Run a Brew Cycle with Water Only

Rinse the inside of your brew Chamber thoroughly to remove any particles.  Rinse 

the outside of the brew Chamber, concentrating on the Exit Check Valve area on the 

underside of the brew Chamber.  directing a stream of water into the Check Valve 

will help flush particles away.  wipe the walls to remove any coffee oils.  Confirm that 

the filter Screen is installed correctly. Run a water only brew Cycle to flush particles 

from the brew Chamber Check Valve.  If still clogged or stuck open, repeat the water 

only brew Cycle 2-3 more times.  If symptoms persist go to step 2.

STEp 2 - Remove Brew Screen and Flush the Brew Chamber Check valve

Using a flat head screw driver rotate the filter Screen counterclockwise 180 degrees 

and remove it from the brew 

Chamber (fig 9-1).  Visually inspect 

the bottom of the brew Chamber 

and the top of the Check Valve 

for particles.  Using a straw or 

toothpick, depress the center 

plunger of the Check Valve and 

flush or spray with water (fig 9-2).  

when satisfied that the Check 

Valve is clean, confirm by filling the 

brew Chamber with clean water and look to see if water drips through the valve.  If 

no drip, replace the brew Screen and confirm proper operation by running a water 

only brew. If Check Valve still drips after repeated flushes, go to step 3.

STEp 3 - Remove Brew Screen , Remove Brew Chamber Check valve, and Flush

with brew Screen removed, turn the brew Chamber over and place the open end on 

a flat surface. Locate the exit opening on the bottom of the brew Chamber.  It has 7 

small holes arranged in a circle.  Using a toothpick, press 

down into the center hole and pop the Check Valve loose 

(fig 9-3).  It should fall inside the brew Chamber and onto 

the flat surface.  flush or spray the Check Valve with clean 

water while depressing the spring loaded center plunger 

with a toothpick.  when satisfied that it is clean, reinstall 

the Check Valve into the brew Chamber.  to reinstall, 

drop the Check Valve into the chamber and shake till the 

valve is in position above the hole at the bottom of the 

brew Chamber.  Confirm that the black o-ring on the 

Check Valve is facing upwards as you use finger or like tool to press the valve into the 

pocket.  Make sure it is pressed in untill flush with the bottom surface.  fill the brew 

Chamber with water to check for drips.  If there is no drip re-install the filter Screen 

and confirm proper operation by running a water only brew Cycle.  If Check Valve is 

still leaking repeat step 3.

Cleaning the Check Valve is only necessary if slow or incomplete press out occurs or if dripping 

occurs before press out.

NotE: be careful not to damage the filter Screen when using a tool or cleaning

Summary of Contents for Trifecta MB

Page 1: ...USE CARE MANUAL coffee and tea brewer...

Page 2: ...Turbulence Cycle control adjusts the sequence of mixing and pausing This is done to extract rich deep flavors in coffee or tea You can choose from five Turbulence Cycles to unlock unique tasting notes...

Page 3: ...e 9 Indicator Light Reference 10 Troubleshooting 11 Authorized Service 12 Limited Warranty 13 trifecta MB Coffee and Tea Brewer GET TO KNOW YOUR BREWER REMOVABLE LID LATCH Brew SCREEN BREW CHAMBER BRE...

Page 4: ...wer for other than its intended use Do not remove Brew Chamber Brew Pitcher or cup while brewing Pressing the Brew Button during a brew will cancel the Brew Cycle The next Brew Cycle will dispense the...

Page 5: ...up or Brew Pitcher and fill the Water Reservoir again Press the Brew Button After the water presses out the second time you should begin to hear the sound of the heater bringing water to the proper te...

Page 6: ...ifting the Latch and pulling on Brew Chamber handle Grinders vary we recommend a drip to coarse grind If the grind is too fine trifecta may not push out all the brewed coffee 1 2 3 Replace Brew Chambe...

Page 7: ...t to finish before removing cup or Brew Pitcher 7 Caution beverage will be hot To clean Brew Chamber turn it over knock to loosen grounds and dispose of grounds Rinse the Brew Chamber with water and w...

Page 8: ...f the desired ounce marking After 6 hours idle the heater inside the Stainless Steel Hot Water Tank drops to 140 F to conserve energy The Brew Button will change from a bright blue to a dim blue light...

Page 9: ...log dishwasher cleaning Follow all cleaning by running a Brew Cycle with water only to flush out any residual cleaners or soap WARNING Never place brewer in sink or dishwasher or submerge in water The...

Page 10: ...onths Mineral deposits may accumulate due to impurities in the water used to brew If deposits are not removed they can impair the operation of the brewer and reduce product life The frequency of clean...

Page 11: ...ng the Brew Chamber with clean water and look to see if water drips through the valve If no drip replace the Brew Screen and confirm proper operation by running a water only brew If Check Valve still...

Page 12: ...quickly Brew was interrupted by lifting the Latch or pushing the Brew Button The button will continue to flash until you push the Brew Button again Push the Brew Button again and after a brief pause t...

Page 13: ...Chamber platform Brewer continues to heat and Brew Button light continues to flash You may be at a higher altitude See page 3 to program your machine for high altitude use Brew Button is pressed but...

Page 14: ...n the Water Reservoir Run a water only Brew Cycle to flush the system Excessive grounds are in the beverage Rinse Brew Chamber thoroughly Remove Brew Screen on bottom of Brew Chamber Rinse area under...

Page 15: ...ce during the warranty period In addition the warranty does not apply to replacement of user replaceable parts such as seals and gaskets due to normal wear and tear THIS WARRANTY SHALL BE EXCLUSIVE AN...

Page 16: ...45627 0000A 2 12 2012 Bunn O Matic Corporation...

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