Genie 19988A.S 70 MFD Garage Door Opener Motor Start Capacitor – 220 VAC

The Genie 19988A.S is a replacement motor start capacitor designed for many compatible Genie garage door openers.

The capacitor provides the temporary electrical boost needed to help the AC opener motor begin turning. When a start capacitor becomes weak or fails, the opener motor may hum, hesitate, struggle to start, or fail to move the garage door.

### Product Features

- Genuine Genie replacement capacitor
- Part number 19988A / 19988A.S
- Replaces X-19988-A applications
- 70 MFD / µF capacitance
- 220 VAC rating
- Motor starting capacitor
- Connects to the existing opener capacitor wiring
- No programming required
- Replacement for many older Genie opener models

### Specifications

- Manufacturer: Genie
- Part Number: 19988A / 19988A.S
- Product Type: Motor Start Capacitor
- Capacitance: 70 MFD / µF
- Voltage Rating: 220 VAC
- Frequency: 50/60 Hz compatible applications
- Approximate Size: 3-5/16" × 1-3/8"
- Application: Residential Garage Door Opener Motor
- Quantity: 1 Capacitor

### What Is It Used For?

The start capacitor provides an extra electrical boost when the garage door opener motor first starts.

During startup:

Power → Start Capacitor → Motor → Drive System → Garage Door

Once the motor begins operating, the opener continues through its normal operating cycle.

### Common Signs of a Failed Capacitor

A weak or failed capacitor may cause:

- Motor hums but does not start
- Opener struggles to begin moving
- Intermittent opener operation
- Motor starts slowly
- Door will not move even though power is reaching the opener
- Capacitor appears swollen, leaking, or damaged
- Burning or electrical odor near the opener powerhead

These symptoms can also be caused by a failed motor, control board, stripped drive components, or an improperly balanced garage door.

Proper diagnosis is recommended before replacing electrical components.

### Compatible Genie Openers

Genie lists the 19988A.S for many compatible models including:

- 1060
- 1560
- 2560
- 3560
- 3860
- H4000
- H6000
- 2060L
- 3060L
- CM7600
- CM8600
- PRO95
- IS525
- IS550
- IS850
- IS900
- IS920
- IMS1000
- ISL950
- ISL980
- G4050
- G5000
- G5050
- G5500
- G5700
- G8000
- GX9000
- GXL9500
- GXL9550
- GXL9900
- GXL1000
- PMX-series compatible models
- AMX-series compatible models
- Additional Genie models originally equipped with the 19988A capacitor

Always verify the opener model and original capacitor before ordering. :contentReference[oaicite:1]{index=1}

### Important Compatibility Note

Do not select a capacitor based only on physical appearance.

Before ordering, verify:

- Original capacitor part number
- MFD / µF rating
- Voltage rating
- Garage door opener model
- Terminal configuration

For example, some Genie models use the different 18004B.S 50–60 MFD capacitor instead.

### 19988A vs. 19988A.S

The older capacitor may be marked:

19988A
X-19988-A

Genie currently identifies the replacement as:

19988A.S

Genie confirms the 19988A.S as the correct replacement for compatible X-19988-A applications. :contentReference[oaicite:2]{index=2}

### Package Contents

Includes:

- 1 – Genie 19988A.S 70 MFD Motor Start Capacitor

Garage door opener, motor, wiring, mounting hardware, and other components are not included unless specifically stated.

### Important Electrical Safety Warning

Capacitors can retain a potentially dangerous electrical charge even after the garage door opener has been unplugged.

Disconnect opener power before servicing internal components.

The capacitor must be safely discharged before removal or replacement.

If you are not experienced working with electrical components, installation should be performed by a qualified garage door or electrical service technician.

After replacement, verify that the garage door is properly balanced and that the opener operates normally through several complete cycles.