WARNING: THE REMAINDER
OF THIS DOCUMENT IS FOR
SERVICE PERSONNEL ONLY.
PLEASE CONTACT YOUR
KEURIG AUTHORIZED DEALER
FOR ALL SERVICE RELATED
ISSUES.
De-Scaling Your Brewer
Mineral content in water varies from place to
place. Depending on the mineral content of the
water in your area, calcium deposits or scale
may build up in your Brewer. Scale is nontoxic,
but left unattended, it can hinder Brewer per-
formance. De-scaling your Brewer helps main-
tain the heating element, and other internal
parts of the Brewer that come in contact with
water.
The Brewer should be de-scaled every 6
months to ensure optimal performance. It is
possible for calcium deposits to build up faster,
making it necessary to de-scale more often.
This Brewer is equipped with sensors to detect
when scale buildup is interfering with the per-
formance of the Brewer. When this is detected,
the brewer will alert you to perform de-scaling.
De-Scaling
(Must be performed in Pour-Over mode).
a. PREPARE
Step 1: Make sure you have at least (64
ounces) of undiluted citric acid on hand. You
will also need an empty sink and a ceramic
cup (do not use a paper cup.)
Step 2: Empty the water in the Cold Water tank.
b. FILL AND CLEAN
Step 1: Pour the citric acid into the Cold
Water tank, filling until the brewer alerts you
of a full tank.
Step 2: Place a ceramic cup in the Drip Tray
and run a brew cycle. DO NOT USE A
K-CUP
®
portion pack, just press the Large
Mug Brew Button. Pour the contents of the
cup into the sink.
Step 3: Repeat the brew process until
ADD WATER
TO CONTINUE
appears on the LCD screen, pouring the
contents of the cup into the sink after each
cycle. We suggest using the largest brew
size to speed the process. Remember to
open and close the brew handle between
each cycle so the blue Brew lights will flash.
Step 4: Now let the Brewer stand for 1 hour
while still on.
Step 5: Fill and drain the Cold Water tank
three times with fresh water, then refill a final
time with fresh water.
Step 6: Place a ceramic cup on the Drip Tray
and run a regular brew cycle without using a
K-Cup
®
. Pour the contents of the cup into
the sink (remember, the hot water tank still
has citric acid in it).
Step 7: Repeat the brew process, without
K-Cups
®
. until the Cold Water tank is empty,
pouring the contents of the cup into the sink
after each cycle. We suggest using the
largest brew size to speed the process.
Remember to open and close the brew han-
dle between each cycle so the blue Brew
lights will flash.
Step 8: You may need to perform additional
rinse cycles if you notice any residual taste.
NOTE: If the LCD screen still alerts you to per-
form a descale after completing the procedure,
repeat the descaling procedure above.
13