Lincoln 1100-000-A SERIES (SN 2038615 & BELOW) service manual

Air pressure switch	Check air switch terminals for supply voltage to
	terminals NO 2 and COM. If voltage is present
	on one side only, check for air tube blockage or
	misalignment. If these are okay, adjust switch
	or replace if necessary.
Oven cavity hi-limit	Terminals are normally closed, opens at 660° F
thermostat	°
	(350 C). If open, push in reset button and
	retest. If thermostat will not hold for maximum
	oven temperature, and oven is not exceeding
	temperature dial setting, check for proper
	location of capillary bulb in its spring holder. If
	above checks are okay, replace hi-limit
	thermostat.
Ignition control	Check for proper supply voltage to ignition
	control. Check for proper line voltage to the
	burner blower motor. This can be checked at
	motor connecting plug terminals 2 and 5. If
	voltage is present, proceed with next step, if
	not, wait 30 seconds, push reset button and try
	to restart. If this fails, check wires from
	thermostat and burner blower motor to the
	ignition control. If all above checks okay,
	replace ignition control.
Burner blower motor	Check for supply voltage to motor. WITH
	POWER OFF: Turn blower wheel to check for
	locked rotor. If proper supply voltage is present
	at motor connecting plug, terminals 2 and 5,
	and motor does not run, replace motor.
Air pressure switch	Check for proper supply voltage switching from
(burner blower)	“NC” to “NO” on ignition control. Check for air
	switch adjustment, air tube blockage or
	misalignment. If these fail, replace air pressure
	switch.
Spark generator	A pre-purge time of 30 to 60 seconds occurs
	after blower motor starts. Check for supply
	voltage at spark generator. If voltage is not
	present, check reset button for the ignition
	control. If voltage is still not present, replace
	ignition control. If there is input voltage but
	there is no output voltage, replace spark
	generator.
Igniter/sensor assembly	Check this assembly for visible damage.
	Replace as needed. If there is no visible
	damage, check for supply voltage to
	igniter/sensor assembly. If there is supply
	voltage to igniter/sensor assembly, but there is
	no spark, replace igniter/sensor assembly.
Gas valve	Gas valve should open when proper supply
	voltage is present. If no voltage is present,
	check the reset button on ignition control, and
	all connections for tightness. If there is still no
	voltage at gas valve, replace the ignition
	control. If there is voltage present, check for
	gas pressure at the gas pressure tap (located
	in the gas piping just prior to the burner). If
	there is no gas pressure, replace the gas valve.

Impinger II – 1100-000-A Series (SN 2038615 & Below) Service Manual –Int’l 7