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COMPONENT
CHECKOUT PROCEDURE
RESULT
THERMISTOR
Measure the resistance: Between the Pin 1 and Pin 3 of connector S103 after disconnecting it from the control circuit board with an ohm-meter on the highest scale.
Normal Reading: Approximately 1800K ohms @ 20�C 1400K ohms @ 25�C
CONVECTION HEATER (BACK HEATER)
Measure the resistance: After removing the lead wires from the convection heater with an ohm-meter on R x 1 scale.
Normal Reading: Approximately 46 ohms
GRILL HEATER (UPPER HEATER)
Measure the resistance: After removing the lead wires from the grill heater with an ohm-meter on R x 1 scale.
Normal Reading: Approximately 48.7 ohms
BLOWER MOTOR
Measure the resistance: After removing the lead wires from the blower motor with an ohm-meter on R x 100 scale.
Normal Reading: Approximately 300 ohms
CONVECTION FAN MOTOR
Measure the resistance: After removing the lead wires from the convection fan motor with an ohm-meter on R x 100 scale.
Normal Reading: Approximately 180 ohms
Measure the resistance: After removing the lead TURNTABLE MOTOR wires from the turntable motor with an ohm-meter on highest scale.
