Kenmore / Sears Magnetron

The Magnetron is an OEM part for LG microwaves. As the primary cooking mechanism, it generates microwave energy to heat and cook foods quickly.

Causes can be from normal wear and tear over years of use. Damage may also occur if the microwave interior is exposed to moisture, spills or debris.

Symptoms of a faulty magnetron include:

• Slow or ineffective cooking
• Hot or cold spots in cooked foods
• Buzzing or humming noises emanating from inside the microwave

This OEM LG part is also compatible with some Kenmore models.

The Magnetron is an OEM part for Whirlpool microwaves. This part generates the microwave energy necessary for cooking and heating food.

Causes of a bad Magnetron can include normal wear and tear over time, power surges or electrical issues, or physical damage from impact or mishandling.

Symptoms of a bad Magnetron include:

• The microwave not heating or cooking food properly
• Arcing or sparking inside the microwave cavity
• Strange noises or buzzing sounds during operation
• Burning smells or smoke coming from the microwave

This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper and some Kenmore models.

A replacement magnetron assembly that generates the microwave energy used for cooking and reheating. Installs in countertop and over-the-range microwave ovens to restore normal heating performance when the magnetron fails. What it does:

• Produces high-frequency microwave energy that heats food inside the oven cavity.
• Commonly replaces a unit when the microwave stops heating or heats very weakly.
• Can address symptoms like no/poor heating, intermittent heating, or loud humming from the oven during operation.
• Not a control or capacitor—this part is the microwave-generating tube and works with the oven's HV system.

• Always disconnect power and unplug the appliance before starting service.
• The high-voltage capacitor can retain a dangerous charge; discharge properly.
• Handle the magnetron carefully; avoid touching terminals or the antenna.
• Follow OEM instructions and safety guidelines for reassembly and testing.

This microwave high-voltage capacitor stores and releases energy in the high-voltage circuit to power the magnetron. Replacing a failed capacitor helps restore proper heating and protects other components in the high-voltage system.

• Works with the transformer and high-voltage diode to supply the magnetron with the required voltage
• Failure may result in the unit running but not heating
• Shorted capacitors can blow the internal fuse or trip a breaker; opens may cause loud humming or buzzing
• Visible swelling or leakage on the capacitor body are common failure signs

• Unplug the microwave; capacitors can retain a dangerous charge even when unplugged—discharge using an appropriate, insulated method before servicing
• Note wire positions and terminal orientation; transfer any mounting hardware from the original part
• Mount securely and route wires to avoid pinching

This motor start/run capacitor helps the compressor and fan motors start and run reliably, restoring normal cooling performance when a failing capacitor causes hard starts or intermittent motor operation. A direct-replacement component for affected units. What it does:

• Provides the electrical phase shift and stored energy needed for compressor and fan motor startup.
• Helps prevent slow starts, humming, or motors that won't start reliably.
• Restores stable motor operation and can reduce overheating or tripping caused by a weak capacitor.
• Works as a replacement for the same OEM-design capacitor in compatible refrigerators and freezers.

• One replacement capacitor (single unit)

• Disconnect power to the appliance before inspecting or replacing the capacitor to avoid shock.
• Verify capacitor is fully discharged before handling; use insulated tools and follow safety procedures.
• Match the capacitor's mounting and terminal type to the existing part for correct fit and connection.

This magnetron is the microwave's high-voltage tube that generates the microwaves used to heat food. Replacing a faulty magnetron restores heating performance and stops power-related cooking failures. What it does:

• Converts high-voltage electrical energy into microwave radiation that heats food
• Common symptom: microwave runs but does not heat
• Also be needed if you notice humming, arcing, or a burning electrical smell during operation
• Works with the oven's high-voltage system and waveguide to deliver cooking power

• Disconnect power before servicing; microwave high-voltage components can retain lethal charge
• Discharge the high-voltage capacitor and follow safety procedures
• Inspect waveguide cover and surrounding components for damage when replacing the magnetron

This magnetron generates microwave energy to heat food in compatible countertop and over-the-range microwaves. Replacing a worn magnetron restores cooking power and helps eliminate uneven heating or failure to heat. What it does:

• Converts high-voltage electrical power into microwave radiation used to cook and reheat food
• Common symptom: oven runs but food doesn't heat or heats very slowly
• May also be needed if you notice loud buzzing, arcing, or burning odors during operation
• Works with the microwave's high-voltage system; other components may also need inspection

• One magnetron (single unit as shown)

• Disconnect power and discharge the microwave's high-voltage capacitor before servicing
• Inspect surrounding parts (waveguide, diode, capacitor, and cooling fan) for damage during replacement
• Use only the correct replacement part number to ensure proper fit and safe operation

This magnetron is the high-voltage microwave tube that generates the microwave energy used to cook and reheat food in your oven. Replacing a failing magnetron restores heating performance when the rest of the microwave system is functioning. What it does:

• Generates microwave energy that heats food inside the oven cavity
• Common symptom: unit powers on but does not heat
• May also cause loud humming, burning smell, or arcing when failing
• Works with the oven's high-voltage circuit and waveguide to deliver even cooking

• One magnetron

• High-voltage component — disconnect power and discharge the capacitor before service
• Avoid touching terminals or the ceramic insulators; handle by mounting brackets
• Verify other high-voltage components (diode, capacitor, transformer) and seals to ensure safe operation