Lincoln 1634-000-EA replace the spark generator. If there, or damaged wires in burner tube

		replace the spark generator. If there
		is visible damage to the igniter/sensor
		assembly, replace. Also check for frayed
		or damaged wires in burner tube.
	Gas valve	Check for supply voltage to gas valve.
		If there is no voltage present, check
		reset button, check all connections for
		tightness. If there still is no voltage at
		gas valve, replace ignition control.
		If there is voltage present, check for
		gas pressure at gas pressure tap located
		in gas piping at burner manifold.
		If there is no gas pressure, replace
		gas valve.
Flame will not stay on	Flame sensor	To check for flame sensor operation,
		connect a digital multimeter (capable
		of measuring D.C. micro amps) in
		series with the flame sensor wire and
		ignition control. Sensor current is 3
		micro amps D.C. minimum.
		NOTE: The D.C. micro amp test must
		be conducted with the oven in low
		flame (bypass) operation. Turn the
		temperature control to its lowest
		setting. If these readings are not
		achieved, replace igniter/sensor assy.
		Also, check for any type of damage to
		flame sensor wire and connections.
	Ignition control	If there is sufficient flame sensor current,
		but the burner will not remain ignited,
		check the reset button on ignition control.
		NOTE: Check for proper polarity of
		the power supply. If all of the above
		are OK, replace ignition control.
Pilot lamp is on,	Temperature control	Check for supply voltage across
But no main flame		terminals L2 and 240 on temperature
		control board. If no voltage is present,
		check wiring back to hi-limit thermostat.
		Turn the temperature adjustment knob to
		the maximum temperature position and
		check for supply voltage at the load
		terminal #7 and #8. If voltage is present
		and unit is not heating, refer to
		“temperature regulation valve” for next
		check. If voltage is not present, proceed.
	Thermocouple probe	With power on and thermocouple leads
		attached to board, measure the millivolt
		out put of the thermocouple. Refer to the
		thermocouple chart in section D for
		proper readings.
	Temperature control	WITH POWER OFF: Remove the
	Potentiometer	potentiometer leads from the temperature
		control board. Place ohm meter test leads
		on the blue and green pot leads. Reading
		should be 1 K ohms. Place meter leads
		across the blue and purple pot leads and
		rotate knob from high to low. Repeat on
		green and purple leads. Check for even
		rise and fall of ohms reading to insure
		that there are no open or dead spots in
		the potentiometer. Check each lead to
		ground for shorts. Replace potentiometer
8	Low Profile – 1600 Advantage Series Service Manual – International