Magnetron

Magnetron

The magnetron is located behind the fan mounting plate.

Removal

WARNING: Prior to servicing the magnetron, be certain the capacitor is discharged. Manually discharge by placing an insulated-handle screwdriver between the diode connection of the capacitor and the oven chassis ground.

Remove the microwave (see Microwave Removal and Component Access). Remove the TCO and the magnetron electrical connectors. Remove 4 nuts from the top of the magnetron and remove the screw and brace. Remove the magnetron.

Gas Sensor

The gas sensor detects humidity changes during sensor cook functions and transmits this information to the main board.

The gas sensor is located in the air exhaust duct, behind the grille on the left side.

To check, run diagnostics (see Diagnostics Test).

Removal

Remove the hidden vent (see Microwave Removal and Component Access). Slide white plastic retainer forward and pull the gas sensor down.

Gas Sensor

Transformer

The transformer is located behind the fan mounting plate below the magnetron.

Resistance through the transformer from the power cord (L) to the high-power secondary interlock (blue wire) is approximately 0.32 ohms. The door (primary and monitor interlock) must be closed.

Resistance through the transformer from the high-power secondary interlock (blue wire) to the low-power secondary interlock (single white wire) is approximately 28.7 ohms. The door (monitor interlock) must be closed.

Removal

WARNING: Prior to servicing the transformer, be certain the capacitor is discharged. Manually discharge by placing an insulated-handle screwdriver between the diode connection of the capacitor and the oven chassis ground.

Remove the microwave (see Microwave Removal and Component Access). Remove the screws and the bottom panel. Disconnect electrical connectors. Remove the white and red wires from the capacitor and the red wires from the magnetron.

Caution: The transformer is heavy.

Remove 4 screws from the bottom that hold the transformer in place.

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GE JVM2070_H manual Magnetron, Gas Sensor, Transformer, Removal