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Fig. 44
3. Set VOM to micro amps scale (DC). Remove
flame sense wire from ignition module and
connect it to the black meter lead (-) and connect
red meter lead (+) to flame sense terminal.
4. Turn on/off switch on and set the temperature dial
to call for heat.
5. With kettle burner lit, meter reading should be
above 1.5 micro amps (minimum) and steady.
A. If reading is greater than or equal to 1.5
micro amps then flame sense current is
within tolerance. Turn on/off switch off and
reconnect flame sense wire.
B. If reading is less than 1.5 micro amps and
the condition of the spark ignitor and flame
sense has been verified as good, turn on/off
switch off. Install a replacement ignition
control module and check for proper
operation.
IGNITION CONTROL MODULE
TEST
Fig. 45
1. Access ignition control module in KETTLE
CONTROL AREA.
2. Turn the on/off switch on and set the temperature
dial to call for heat.
A. Power (1LT) light and heat light (3LT) come
ON.
3. Ignition control module is energized and trial for
ignition starts (6 seconds).
A. Verify 24VAC between terminals 25V & 25V
GND. If voltage is not present, check
transformer (1T) output voltage.
4. Spark voltage is sent from spark terminal to the
spark ignitor electrode and sparking begins. At
the same time, the ignition module contacts close
to energize gas valve coils, allowing gas flow to
the burner. The kettle burner will light, burner
flame is sensed and spark voltage from spark
terminal is removed (sparking stops).
A. Verify 24VAC between terminals valve and
valve. If voltage is not present, replace
ignition control module and check for proper
operation.
5. As long as the temperature controller is calling for
heat and the ignition control module is sensing a
sufficient flame sense current, the valve contacts
will remain closed.
K Series Gas Kettles 2/3 Jacketed Stationary and Tilting - SERVICE PROCEDURES AND ADJUSTMENTS
Page 25 of 44 F45461 Rev. A (0713)