LiftMaster 030B0532-1 Motor Capacitor 56uF 220V
LiftMaster 030B0532-1 is a motor start capacitor used on select 1/2 HP LiftMaster and Chamberlain garage door openers that require a 56uF to 64uF, 220V/60Hz capacitor. The capacitor provides the electrical boost the AC motor needs to start and run properly. When the capacitor weakens, the opener may hum without moving, start slowly, stop under load, or appear to have a motor problem even though the motor itself may still be usable. Capacitors are not interchangeable by size or appearance alone. The microfarad rating, voltage rating, terminal layout, and operator model must be matched carefully before ordering or installing.
Compatible With
- Select 1/2 HP LiftMaster residential garage door openers requiring a 56uF to 64uF 220V capacitor
- Select 1/2 HP Chamberlain residential garage door openers requiring the same capacitor rating
- Select belt drive garage door opener models that list K030B0532-1 or 030B0532-1
- Select chain drive garage door opener models that list K030B0532-1 or 030B0532-1
- Not a substitute for 120V, 89uF, screw drive, or different horsepower capacitor applications unless the parts diagram confirms it
Features and Specifications
| Manufacturer | LiftMaster |
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| Product Type | Motor start capacitor |
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| Part Number | 030B0532-1 |
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| Capacitance | 56uF to 64uF |
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| Voltage | 220V |
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| Frequency | 60Hz |
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| Application | Select 1/2 HP residential garage door openers |
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| Compatible Operator Type | Select LiftMaster and Chamberlain belt drive and chain drive openers |
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Also Known As / Related Part Numbers
- K030B0532-1
- 030B0532-1
- 30B532
- 030B0638
- 30B638
- 030B0532
- 56uF capacitor
- 56uF-64uF 220V capacitor
Technician Note
Capacitors can hold an electrical charge after power is disconnected. Do not handle capacitor wiring unless you are trained to safely discharge and replace electrical components.
Before Ordering
- Match the uF rating and voltage rating to the old capacitor
- Confirm the opener horsepower and model number
- Compare terminal style and mounting space
- Check the parts diagram for K030B0532-1, 030B0532-1, 30B532, or 030B0638
- Do not replace a 120V capacitor with a 220V capacitor or vice versa
Professional Advisory
Electrical diagnosis inside an opener can be hazardous. If the opener hums, trips, smells hot, or has damaged wiring, have it inspected by a qualified garage door technician.
Important Ordering Warnings
- Do not substitute a different microfarad rating
- Do not assume K030B0652-1 or 030B0652-1 is interchangeable; that is an 89uF 120V capacitor family
- Disconnect power before service and follow safe capacitor handling procedures
Product Questions and Answers
What is the rating of the 030B0532-1 capacitor?
030B0532-1 is commonly listed as a 56uF to 64uF motor capacitor rated for 220V/60Hz applications.
Is K030B0532-1 the same as 030B0532-1?
K030B0532-1 and 030B0532-1 are closely related service part formats. Related numbers include 30B532, 030B0638, 30B638, and 030B0532.
What opener type is this capacitor commonly used with?
Manufacturer listings associate this capacitor with select 1/2 HP LiftMaster and Chamberlain belt drive and chain drive garage door openers that call for the 56uF to 64uF 220V capacitor.
What symptoms can a bad capacitor cause?
A weak capacitor can cause the motor to hum, start slowly, fail to start, trip intermittently, or require several attempts before the door moves. The door and motor should still be checked before assuming the capacitor is the only problem.
Can I replace it with a capacitor that has a different rating?
No. The capacitance range, voltage rating, terminal style, and physical fit should match the original part or the manufacturer parts list. Incorrect capacitor ratings can damage the opener or create unsafe operation.
