Is Your Air Conditioner Acting Up? It Might Be the Capacitor
Summer heat can be brutal, and an air conditioner not cooling properly is the last thing you need. One of the most common culprits behind a struggling AC unit is a failing capacitor. Here’s why this happens and how you can prevent it…
What is an AC Capacitor?
An air conditioner capacitor is a small but crucial component that stores electrical energy. This energy is then released to help start the compressor and fan motors. Without a functioning capacitor, your AC unit simply won’t turn on or will struggle to operate efficiently.
Why Does the Capacitor Fail?
Capacitors have a lifespan, typically between 5 and 10 years. Over time, the internal components degrade, leading to reduced performance and eventual failure. Other factors that can accelerate capacitor failure include:
- Power surges: Sudden spikes in electricity can damage the capacitor.
- Overheating: Extreme temperatures can shorten the capacitor’s life.
- Age of the unit: Older air conditioners are more likely to experience capacitor issues.
Signs of a Bad Capacitor
If you suspect your capacitor might be failing, look for these common symptoms:
- Compressor doesn’t start: The most obvious sign is when the compressor fails to kick in.
- Humming noise: A humming sound coming from the outdoor unit could indicate a capacitor problem.
- Reduced cooling efficiency: If your AC is running but not cooling as effectively as before, it might be a capacitor issue.
Preventing Capacitor Failure
While you can’t completely prevent capacitor failure, there are steps you can take to extend its lifespan:
- Regular maintenance: Schedule annual tune-ups for your AC unit. A professional can inspect the capacitor and identify potential issues early on.
- Surge protection: Install a surge protector to shield your AC unit from power spikes.
- Proper care: Keep the area around your outdoor unit clear of debris to prevent overheating.
Important note: Working with electricity can be dangerous. It’s best to call a professional HVAC technician.
