15
c. Hang a strip of pH test paper on the rim of the
container, with about 25 mm of the strip below
the surface of the water.
d. Measure the water treatment compound you
will be using. (One way to do this is to add the
compound from a measuring cup.)
e. Stir the water continuously, while you slowly
add water treatment compound, until the water
reaches a pH between 10.5 and 11.5. Judge
the pH by frequently comparing the color of the
test strip with the color chart provided in the pH
test kit.
f. Record the exact amounts of water and
treatment compound used. These amounts
may be used again, if the same sources of
water and compound are employed to refill the
jacket in the future. However, it is advisable to
check the pH every time treated water is
prepared. For optimum performance, use
correctly treated, distilled water.
Model Jacket Capacity
TDB(C)-20 3.8 Liters
TDB(C)-40 4.7 Liters
4. Component Replacement
WARNING
BEFORE REPLACING ANY PARTS,
DISCONNECT THE UNIT FROM THE ELECTRIC
POWER SUPPLY.
Wiring is marked as shown on the schematic
drawings. Be sure new components are wired in the
same manner as the old.
Troubleshooting
Your kettle is designed to operate smoothly and efficiently if properly maintained. However, the following is a list of
checks in the event of a problem. Wiring diagrams are furnished inside the service panel and at the back of this
manual. Items followed by X, should only be done by a qualified service representative. USE OF ANY
REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY GROEN OR ITS AUTHORIZED
DISTRIBUTORS CAN INJURE TO THE OPERATOR AND DAMAGE THE EQUIPMENT AND WILL VOID ALL
WARRANTIES.
SYMPTOM WHO WHAT TO CHECK
X indicates items which must be performed by an authorized technician.
Kettle will not heat, and heating
indicator will not come on.
User a. Electric power supply to the unit.
b. Water level in jacket.
Auth Service
Rep Only
c. Control circuit fuses. Replace a blown fuse only with a fuse of
the same AMP rating. X
d. For loose or broken wires. X
e. Tilt cut-off switch. X
f. That pressure switch is open. X
g. Operation of variable thermostat. X
h. Low water cutoff. X
Kettle will not heat, but heating
indicator comes on.
Auth Service
Rep Only
a. Contactor. X
b. Heater elements with ohmmeter for ground short or open
element. If element is defective, call Groen. X
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