OM/SM-TDB/7(CE)
15
Model
Jacket Capacity
TDB/7-20
3.8 Liters
TDB/7-40
4.7 Liters
4. Component Replacement
WARNING
B E F O R E R E P L A C I N G A N Y P A R T S ,
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
Kettle continues heating after it
reaches the desired temperature
User
a. Thermostat dial setting.
Auth Service
Rep Only
b. Thermostat circuit for short. X
c. Thermostat operation. The thermostat should click when the
dial is rotated above and below the setting for the temperature
of the kettle. X
d. Contactor, to determine whether it is energized or stuck.
Kettle stops heating before it
reaches the desired temperature.
User
a. Thermostat dial setting.
Auth Service
Rep Only
b. Thermostat calibration. X
c. Thermostat operation. The thermostat should click when the
dial is rotated above and below the setting for the temperature
of the kettle. X
Kettle heats slowly
User
a. For air in the jacket. See “Jacket Vacuum” in the
“Maintenance” section of this manual.
Auth Service
Rep Only
b. Heater elements with ohmmeter for ground short or open
element. If an element is defective, call Groen. X
c. Voltage of main power source. X
Safety valve pops.
User
a. For air in the jacket. See “Jacket Vacuum” in the
“Maintenance” section of this manual.
Auth Service
Rep Only
b. Pressure switch setting. X
c. Thermostat operation. Thermostat should click when the dial
is rotated above and below the setting for the temperature of
the kettle. X
d. Safety valve. If the valve pops at pressures below 49 PSI,
replace it. X
e. Contactor, to determine whether it is de-energized. X
