LiftMaster 030B0532-1 Motor Capacitor – 56µF 220V for 1/2 HP Garage Door Openers

The LiftMaster 030B0532-1 Motor Capacitor is a replacement motor capacitor for compatible LiftMaster and Chamberlain 1/2 HP AC garage door openers.

Rated at approximately 56 µF and 220 volts, the capacitor provides the electrical phase shift needed to help the AC opener motor start and operate correctly. A weak or failed capacitor can prevent an otherwise functional motor from starting properly.

Specifications

Common Applications

This capacitor is used with select LiftMaster and Chamberlain AC chain-drive and belt-drive garage door openers.

Known compatible LiftMaster applications include select:

• 8075

• 8155

• 8155W

• 8164W

• 8165

• 8165W

• 81640

• 81650

• 8355 / 8355W

• 8365 / 8365W series

Compatibility varies by opener production version. Always verify the opener model number and capacitor specification before ordering.

Symptoms of a Weak or Failed Motor Capacitor

A failed capacitor may cause symptoms such as:

• Motor hums but does not start

• Opener struggles to begin moving the door

• Motor starts intermittently

• Opener requires repeated attempts to run

• Capacitor appears swollen, leaking, or physically damaged

These symptoms can also be caused by other motor, electrical, gear, spring, or door-balance problems, so the complete opener system should be inspected before replacing parts.

Important Compatibility Notes

Do not select a motor capacitor based only on horsepower.

LiftMaster has used different capacitor ratings across different opener generations and motor configurations.

Before ordering, verify:

• Garage door opener model number

• Existing capacitor part number

• Capacitance rating

• Voltage rating

• Motor horsepower

• Physical connection and mounting configuration

The replacement capacitor should match the specifications required by the opener manufacturer.

Before Replacing the Capacitor

A garage door that is excessively heavy or poorly balanced can place additional load on the opener motor.

Before returning the opener to service, confirm that the garage door:

• Moves freely by hand

• Is properly balanced

• Has correctly functioning springs

• Does not bind in the tracks

• Has rollers and hardware in serviceable condition

A properly balanced garage door reduces unnecessary load on the opener motor and electrical components.

Installation & Electrical Safety

Disconnect the garage door opener from electrical power before servicing internal components.

Motor capacitors can retain an electrical charge even after power has been disconnected. Appropriate electrical-service procedures must be followed before touching capacitor terminals or removing the component.

Installation should be performed by a qualified technician if you are not familiar with garage door opener electrical systems.

What's Included

• 1 LiftMaster motor capacitor

Mounting bracket, motor, wiring, and other opener components are not included unless specifically stated.

LiftMaster 030B0532-1 Motor Capacitor – 56µF 220V for 1/2 HP Garage Door Openers

LiftMaster 030B0532-1 56µF 220V motor capacitor for compatible 1/2 HP LiftMaster and Chamberlain AC chain-drive and belt-drive garage door openers.