Lincoln 1133-000-A - Manual (Page 15)

Impinger II – Advantage Digital Service Manual - Domestic 15
discharge before testing.
Switch, conveyor reversing Check continuity between switch terminals.
Replace switch as needed.
Oven control If there is supply voltage to the motor, and the
motor, capacitor, and reversing switch check
good, replace the oven control.
Conveyor motor runs, but
there is no speed display NOTE: Display will indicate
“Belt Jam”
Oven control Check for output voltage from oven control to hall
effect sensor (sensor is located in 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
present at the oven control, replace the 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 at 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.