Parts for Lg LA120CP / AMTAEUS: Section 2 Parts

This capacitor helps the appliance motor start and run smoothly by storing and releasing electrical energy as needed. Replacing a failing capacitor restores proper motor performance and can stop intermittent operation. What it does:

• Provides the electrical phase shift needed for the motor to start and maintain rotation
• Commonly linked to symptoms such as humming, motor not starting, intermittent spin, or reduced performance
• Supports stable motor operation under load to prevent stalling
• Works as a direct-fit electrical component when matching the correct part number

• One capacitor

• Disconnect power to the appliance before servicing to avoid shock
• Discharge the capacitor before handling; use insulated tools and follow safety procedures
• Inspect wiring and connectors for damage and replace any faulty harnesses

This isolator routes microwave energy between the magnetron and waveguide to help protect components and maintain consistent heating performance. Replacing a failed isolator can restore reliable cooking and help prevent further high-voltage damage. What it does:

• Directs RF energy from the magnetron into the waveguide/cavity
• Helps protect the magnetron by reducing reflected energy
• Aids in preventing arcing or burn damage in the waveguide area
• Common symptoms of failure: no heat or uneven heating, loud humming/buzzing, visible arcing/burn marks near the waveguide

• 1 isolator

• Disconnect power and discharge the high-voltage capacitor before servicing; risk of electric shock
• Handle waveguide components carefully; avoid contaminating RF surfaces and note exact orientation
• Take photos of the original setup to match positioning and fastener locations