Groen TDH, Operator'S Manual

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18
OM-TDH
OM-TDH
18
Troubleshooting
Your Groen 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 and in
this manual. If an item on the list is followed by
�
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, the work should be done by a qualified service
representative.
WARNING
BEFORE REPLACING ANY PARTS, DISCONNECT THE UNIT FROM THE ELECTRIC POWER SUPPLY
AND CLOSE THE MAIN GAS VALVE. ALLOW FIVE MINUTES FOR UNBURNED GAS TO VENT.
CAUTION
USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY GROEN OR THEIR AUTHORIZED
DISTRIBUTOR CAN CAUSE INJURY TO THE OPERATOR AND DAMAGE TO THE EQUIPMENT AND WILL
VOID ALL WARRANTIES.
SYMPTOM WHO WHAT TO CHECK
� � � �
indicates items which must be performed by an authorized technician.
Kettle is hard to tilt.
(TDHC ONLY).
Auth
Service
Rep Only
a. Gears for foreign materials, and lubrication.
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b. Gears for alignment.
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c. Worm gears or broken gears.
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Kettle continues heating after
it reaches desired
temperature.
User a. Thermostat dial setting.
Auth
Service
Rep Only
b. Thermostat calibration.
�
c. Thermostat operation. The thermostat should click when the dial is
rotated to settings above and below the temperature of the kettle.
�
Kettle stops heating before it
reaches the desired
temperature.
User a. Thermostat dial setting.
Auth
Service
Rep Only
b. Thermostat calibration.
�
c. Thermostat operation. The thermostat should click when the dial is
rotated to settings above and below the temperature of the kettle.
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Pressure Relief Valve pops
open
User a. For air in the jacket. See Jacket Vacuum / Removing Air From
Jacket in the Maintenance section.
b. Thermostat dial setting.
Auth
Service
Rep Only
c. For defective thermostat. The thermostat should click when the dial
is rotated to settings above and below the temperature of the kettle.
If defective, replace.
�
d. For defective pressure relief valve. If the valve pops at pressures
below 49 PSI, replace.
�
Burners will not light. User a. That the main gas supply valve is open. (handle is in line with gas
pipe).
b. Gas supply to the building.
c. That the kettle body is horizontal.
Auth
Service
Rep Only
d. Thermostat operation. The thermostat should click when the dial is
rotated to settings above and below the temperature of the kettle.
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e. Momentary switch is being properly actuated.
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System does not produce a
spark
Auth
Service
Rep Only
a. Thermostat, and close the contacts if they are open
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b. AC voltage between terminals on secondary side of transformer. If
it is not 24 Volt, replace the transformer
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c. That the high tension cable is firmly attached and in good condition.
If cracked or brittle, replace.
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d. Pilot electric ceramic for crack or break.
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e. Pilot spark gap. Regap.
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