Lincoln 1100 Series service manual No main fan cool down

No main fan cool down	20 Minute Time Delay	Check for 120 VAC at pin#2 and #3
	Relay	while main fan is running. Turn off
		main fan switch and 120 VAC should
		continue to be present for 20 minutes.
	Main Fan Relay	Check if relay is operating and
		terminals are remaining closed for
		main fan cool down of 20 minutes.
Main fan runs after		NOTE: The time delay relay will
20 minute cool down		keep the coil of the main fan relay
		closed, maintaining main fan operation for
		cool down for approximately 20 minutes.
	Cool Down Relay	Contacts of the relay should
		open when main fan is switched off.
	Time Delay	120 VAC at terminal 2 should
		discontinue approximately 20 minutes after main
		fan is switched off. If cool down relay is open and
		voltage continues at terminal 2,
		replace time delay.
	Main Fan Relay	When voltage at terminal 2 of time
		delay ceases, main fan relay must open.
No control box cooling	Incoming Power	Check main circuit breakers, reset if
		required, call power company if
		needed.
	Main Fan Switch	Check continuity between switch
		terminals.
	Control Box High Limit	Terminals are normally closed, and
	Thermostat	open at 170°F ± 5°F (76.6°C ± 2.8°C).
	Note: Discontinued at	Check for over heating and reset
	S/N 2011821	thermostat. Test for proper operation.
		If it will not reset and hold, replace.
	Fuse, 1 Amp	Check, replace if necessary.
	Fuseholder	Check, replace if necessary.
	Step Down Transformer	120 VAC should be present on
		secondary. Replace as needed.
	Cooling Fans	120 VAC should now be at these fan
		motors. If voltage is present, check
		motors for shorts or opens.
		WITH POWER OFF: Check for locked rotor.
No automatic control	Incoming Power Supply	Check circuit breakers, reset if
box cooling		required, call power company if needed
		Cooling Fan Thermostat Thermostat is normally
		open and closes at 120°F ± 3 (48.9°C ± 1.7°),
		and opens at 100°F ± 3°F
		(37.8°C ± 1.7°C).
	Control Box Hi Limit	Terminals are normally closed, but
	Discontinued at S/N	open at 170°C ± 5°F (76.6°C ± 2.8°C).
	2011821	Check for over heating and reset
		thermostat. Test for proper operation.
		If it will not reset and hold, then
		replace.
	Fuse, 1 Amp	Check, replace if necessary.
	Fuseholder	Check, replace if necessary.
	Step Down Transformer	120 VAC ± 10% should be present at
		secondary of transformer. If proper
		voltage is not present, check
		transformer primary for proper
		input. Replace as needed.
26		Impinger II - 1100 Series Service Manual - International