Lincoln 1117-080-A1, 1162-080-A Occur. If flame is not detected, the ignition control will

		occur. If flame is not detected, the ignition control will
		shut off and lock out. To reset the ignition control,
		turn off the power switch for 45 seconds, then turn
		the switch on to re-try ignition. The ignition control
		requires a minimum of 0.8 DC microamps to prove
		flame. To check flame sensing operation, connect a
		digital multimeter (capable of measuring DC
		microamps) between the “ground” terminal on
		ignition control and the ground lead.
		NOTE: This is a current measurement and the meter
		must be connected in series
		If these readings are not achieved, replace hot
		surface igniter.
		NOTE: The DC microamp test must be conducted
		with the oven in low flame (bypass) operation. Set
		the temperature control to the lowest setting.
	Power supply	If there is sufficient microamp current, but the flame
		will not stay lit, check for proper polarity of the
		120VAC power supply.
	Ignition control	If there is sufficient microamp current, and the
		120VAC polarity is correct, but the flame will not stay
		lit, replace the ignition control.
		NOTE: Check for proper ground connection on
		ignition control.
	NOTE: Flame should be on at
	this time
Low flame is on,	Control transformer	Check for 120VAC supply to the primary of the
but no main flame		control transformer. If no voltage is present, trace
		wiring back to the main power switch. If voltage is
		present, check for 24VAC at the transformer
		secondary. If there is primary voltage, but no
		secondary voltage, replace the control transformer.
	Oven control	Check for 24VAC supply to control. If no voltage is
		present, trace wiring back to control transformer. If
		24VAC is present, check for a read-out on the
		display. If there is 24VAC supplied, but there is no
		read-out on the control display, replace the oven
		control.
		If there is a read-out on the control, set the control to
		maximum temperature (see installation operations
		manual for temperature adjustment). With the control
		set at maximum temperature, check for 120VAC at
		the temperature regulation valve. If there is voltage at
		the temperature regulation valve, proceed to
		“Temperature regulation valve” for next check. If
		there is no voltage at the temperature regulation
		valve, trace wiring back to the oven control. If there is
		no voltage output at the oven control, check the read-
		out on the control. If the control reads “PROBE
		FAIL”, this indicates that the thermocouple has failed
		or become disconnected from the oven control.
	Thermocouple	Check to be sure that the thermocouple is securely
		connected to the oven control. If the thermocouple is
		connected to the oven control, and the control
		indicates “PROBE FAIL”, disconnect the
		thermocouple from the oven control and measure the
		resistance of the thermocouple. The thermocouple
		should read approx. 11Ω. If these readings are not
		achieved, replace the thermocouple. If these
		readings are correct, proceed.

Impinger II – Advantage Digital Express Service Manual - Domestic 13