Lincoln 1154-000-EA the motor connector. Frequency reading should be, Control transformer, needed

	Control transformer	Check for supply voltage to the primary of control
		transformer. If no voltage is present, trace wiring back
		to oven fan switch. If voltage is present, check for
		24VAC at transformer secondary. If there is primary
		voltage, but no secondary voltage, replace control
		transformer.
	Conveyor motor	Check for supply voltage to the conveyor motor at
		terminal #6 to neutral. If no voltage is present, trace
		wiring back to the oven fan switch. If voltage is present,
		but the motor will not run, check the motor windings for
		opens or shorts. If any of the above fail, replace the
		conveyor motor.
	Capacitor, conveyor motor	Check for shorts or grounds. Replace capacitor as
		needed.
		WARNING: Capacitor has a stored charge, discharge
		before testing.
	Switch, conveyor reversing	Check continuity between switch terminals. Replace
		switch as needed.
	Oven control	If there is voltage supplied to the motor, and the motor,
		capacitor and reversing switch check good, replace the
		oven control.
Conveyor motor runs,	NOTE: Display will indicate
but there is no speed	“BELT JAM”
display
	Oven control	Check for output voltage from oven control to hall effect
		sensor (sensor is located in the conveyor motor).
		Measure voltage at the motor connector, red wire and
		yellow wire. Voltage should be approx. 10VDC. If no
		voltage is present, trace wiring back to oven control. If
		there is no voltage output at the oven control, replace
		oven control.
	Conveyor motor	If there is voltage supplied to the hall effect sensor,
		check for a frequency output from the hall effect sensor.
		Measure frequency across the yellow and white wires in
		the motor connector. Frequency reading should be
		approx. 25-100 Hz. If these readings are not achieved,
		replace conveyor motor. If the readings are achieved,
		proceed.
	Oven control	If the hall effect sensor readings are correct, but there is
		no speed indicated on the display, replace the oven
		control

Impinger II – Advantage Digital Service Manual - International 15