Kenmore / Sears Capacitor

If your microwave won't heat food or makes buzzing sounds, the high voltage capacitor may have failed. This part stores electrical energy for the magnetron.

Microwave not heating or making loud buzzing noise? This high voltage capacitor stores and releases power to the magnetron. Moderate DIY repair.

This is a motor start/run capacitor that helps the appliance's motor start and run smoothly by supplying a brief boost of electrical energy. Replacing a failing capacitor restores reliable motor startup and operation. What it does:

• Provides the brief electrical surge needed to start and keep the motor running
• Commonly linked to motors that hum, fail to start, or run intermittently
• Helps prevent overheating from repeated start attempts when functioning properly
• Works with the appliance's start circuitry to ensure consistent performance

• Disconnect power to the appliance before accessing electrical components
• Discharge the capacitor and use insulated tools
• Observe polarity/terminal layout and secure connections to factory specifications
• Dispose of the old capacitor according to local electronic-waste regulations

This run capacitor helps the appliance motor start and run smoothly by storing and releasing electrical energy. Replacing a worn capacitor can restore reliable motor operation and reduce abnormal motor noise or cycling. What it does:

• Provides the brief power boost motors need to start and maintain RPM
• Helps stabilize motor voltage and improve run efficiency under load
• Commonly linked to symptoms such as motors that hum but won't start, slow or intermittent motor operation, or unusual motor noise
• Reduces stress on motor windings that can lead to premature failure when functioning properly

• One motor capacitor

• Always disconnect power at the breaker or unplug the appliance before servicing
• Capacitors can hold a charge; discharge safely
• Observe proper polarity and mounting location during installation; secure wiring and connectors

If your microwave won't power on or runs intermittently, a faulty capacitor may be the cause. This part stores electrical charge for the magnetron.

Fix weak airflow or noisy blower motor in your range hood with this motor run capacitor. Restores proper fan operation and ventilation performance.

Fix a refrigerator that won't cool or has a humming compressor with this running capacitor. Restores smooth motor operation and prevents overheating.

Fix a washer that won't start or hums but doesn't spin with this capacitor. Common fix for motor starting issues. Moderate DIY repair in 30-45 minutes.