The capacitor is one of the most common components to fail in an air conditioner, yet many homeowners have never heard of it. This small cylindrical part plays a crucial role, and recognizing the signs of failure helps you get a quick fix.
What a Capacitor Does
Capacitors store and deliver the jolt of electrical energy needed to start the motors in your air conditioner and keep them running. There are typically start capacitors, which provide the initial surge, and run capacitors, which maintain steady operation of the compressor and fan motors.
Signs of a Failing Capacitor
Several symptoms point to capacitor trouble. The AC may hum but fail to start. The outdoor fan may not spin, or you might need to nudge it to get it going. The system may shut off on its own, struggle to start, or you may hear a clicking sound from the unit. In some cases a failing capacitor causes higher energy use as motors strain to operate.
Why Capacitors Fail
Heat is the enemy of capacitors, and New Jersey's hot summers put them under stress. Age, power surges and running the system under strain from poor maintenance all contribute to failure. Capacitors have a limited lifespan and are a normal wear item.
Why to Call a Professional
While a capacitor is an inexpensive part, replacing one is not a safe DIY job. Capacitors store a powerful electrical charge even after the power is off, and contact can cause serious injury. A trained technician safely discharges and replaces the component and verifies the correct rating for your system.
The good news is that a capacitor replacement is usually a quick, affordable repair that restores normal operation right away.
Need Help From a Cooling Specialist?
Whether you need a repair, a tune-up or a new system, Emergency Cooling NJ is here to help homeowners across New Jersey. We offer AC repair, maintenance, installation and 24/7 emergency service in every NJ county. Call us at 862-660-7726.