If your Genie garage door opener is acting sluggish, making unusual noises, or failing to start, the issue may be the 19988A Mallory Capacitor for Genie Garage Door Opener. This small yet critical component ensures that the motor starts and runs smoothly. Understanding its function, proper replacement, and maintenance can save you costly repairs and keep your garage door operating reliably.
What is the 19988A Mallory Capacitor?
A capacitor is an electronic component that stores electrical energy and releases it when needed. For Genie garage door openers, the 19988A Mallory Capacitor serves a crucial role in:
- Starting the motor: Provides the initial boost to overcome inertia.
- Smooth operation: Stabilizes current flow to prevent jerking or stalling.
- Protecting components: Reduces wear on motor windings.
Without a functioning capacitor, the opener may hum, fail to lift the door, or even damage the motor over time.
Signs Your Capacitor Needs Replacement
Common indications that your 19988A Mallory Capacitor may be failing:
- Garage door opener hums but does not move
- Door starts slowly or jerks during operation
- Opener trips the circuit breaker occasionally
- Excessive heat from the motor housing
According to electrical experts, motor failure due to a bad capacitor is one of the leading causes of garage opener replacement. Catching the issue early can save hundreds of dollars.
Choosing the Right Replacement
When replacing a capacitor, ensure it matches the original specifications:
| Feature | Recommendation |
|---|---|
| Capacitance | Exact match of 19988A specifications (usually microfarads, µF) |
| Voltage Rating | Must meet or exceed the opener motor voltage |
| Brand | Mallory is OEM, but high-quality equivalents may work |
| Temperature Rating | 85°C or higher recommended for longevity |
Using a capacitor with incorrect specifications can lead to motor damage or safety hazards.
Step-by-Step Replacement Process
Tools Needed:
- Flathead or Phillips screwdriver
- Insulated pliers
- Replacement 19988A Mallory Capacitor
Steps:
- Disconnect Power
- Turn off the garage opener at the breaker to prevent electric shock.
- Access the Motor Housing
- Remove screws and carefully open the motor cover.
- Locate the Capacitor
- Typically a cylindrical component near the motor windings.
- Disconnect Old Capacitor
- Note wire orientation. Use insulated pliers to remove connections safely.
- Install the New Capacitor
- Connect wires exactly as they were on the original capacitor.
- Secure and Close Housing
- Ensure the capacitor is mounted firmly and the housing screws are tightened.
- Test the Opener
- Restore power and operate the door to confirm smooth starting and operation.
Safety Tip: Always wear insulated gloves and ensure the breaker is off before touching internal components.
Maintenance Tips for Longevity
- Regular Inspection: Check the capacitor for bulging or leakage every 6–12 months.
- Keep Motor Clean: Dust and debris can reduce capacitor efficiency.
- Avoid Overheating: Ensure proper ventilation around the motor housing.
- Replace Proactively: If your opener is 8–10 years old, consider replacing the capacitor preventively.
Proper maintenance can extend the motor’s life and prevent sudden failures.
Troubleshooting Common Issues After Replacement
| Issue | Possible Cause | Solution |
|---|---|---|
| Door hums but won’t move | Incorrect wiring or defective capacitor | Verify connections, test new capacitor |
| Door moves slowly | Motor wear or voltage drop | Check motor and supply voltage |
| Opener trips breaker | Shorted capacitor | Inspect wiring, replace capacitor |
Always follow manufacturer guidelines when troubleshooting electrical components.
Tips for Sourcing 19988A Mallory Capacitor
- Official Genie Parts Dealers: Guarantees OEM quality
- Online Retailers: Amazon, eBay, and specialized garage door part sites
- Local Electrical Supply Stores: May stock compatible high-quality capacitors
Confirm the capacitor matches exact microfarad and voltage ratings for your Genie opener model.
External Resource
For general information about capacitors:
Wikipedia – Capacitor: https://en.wikipedia.org/wiki/Capacitor
FAQ – 19988A Mallory Capacitor For Genie Garage Door Opener
What does the 19988A Mallory Capacitor do?
It provides the initial electrical boost to start the motor and ensures smooth operation.
How can I tell if it’s bad?
Look for humming without motion, jerky movement, or signs of bulging/leakage.
Can I use a non-Mallory capacitor?
Yes, if the replacement matches exact voltage, capacitance, and temperature ratings.
How difficult is replacement?
Moderate. Basic electrical knowledge and tools are sufficient. Always disconnect power first.
How long do capacitors last?
Typically 5–10 years, depending on usage, heat, and voltage fluctuations.
Should I replace it preventively?
If your opener is over 8 years old, replacing the capacitor proactively can prevent motor failure.
Conclusion
The 19988A Mallory Capacitor for Genie Garage Door Opener is a small but vital component that keeps your garage door opener running smoothly. Regular inspection, proper replacement, and maintenance ensure your opener operates reliably for years.
👉 Share this guide with anyone using a Genie opener to help them avoid costly repairs and maintain optimal garage door performance.
