Blodgett KLT-E Series, Installation Operation & Maintenance

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OM-KLT-E 15
Troubleshooting
Your kettle is designed to operate smoothly and efficiently if properly maintained. However, the following is a list of checks to make
in the event of a problem. Wiring diagrams are furnished inside the service panel. X indicates items which must be performed by
an authorized technician.
USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY THE MANUFACTURER OR AN
AUTHORIZED DISTRIBUTOR CAN CAUSE INJURY TO THE OPERATOR AND DAMAGE TO THE EQUIPMENT AND WILL VOID ALL
WARRANTIES.
SYMPTOM WHO WHAT TO CHECK
Kettle will not heat and
heating indicator will not
come on. User a. Electric power supply to the unit.
b. Water level in jacket.
Authorized
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 cuttoff. X
Kettle will not heat but
heating indicator comes
on. User a. For air in the jacket. See “Jacket Vacuum” in the “Maintenance”
section of this manual.
Authorized
Service Rep Only
b. Contactor. X
c. Heater elements with ohmmeter for ground short or open element.
If element is defective, call Service. X
Kettle continues heating
after it reaches the desired
temperature. User a. Thermostat dial setting.
Authorized
Service Rep Only
b. Thermostat circuit for short. X
c. Thermostat operation. The thermostat should click when the dial
is rotated to settings above and below the temperature of the
kettle. X
d. Contactor, to determine whether it is energized or stuck. X
Kettle stops heating before
it reaches the desired
temperature. User a. Thermostat dial setting.
Authorized
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.
Authorized
Service Rep Only
b. Heater elements with ohmmeter for ground short or open
element.
If an element is defective, call service. 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.
b. Whether kettle was being heated empty when valve popped.
Authorized
Service Rep Only
c. Pressure switch setting. X
d. Thermostat operation. Thermostat should click when the dial is
rotated above and below the setting for the temperature of the
kettle. X
e. Safety valve. If the valve pops at pressures below 24 PSI,
replace it. X
f. Contactor, to determine whether it is de-energized. X