Coronavirus Update: We are taking all the necessary precautions for your safety & are still open for demand service & no heat calls. Read More

Skip navigation

When quality matters!

Winner of the 2016 President's Award for Carrier

24 hr. emergency service


Serving the Greater Houston and Fort Bend area


Why a Bad AC Capacitor is Such a Problem

One of the most common reasons we receive calls for air conditioning repairs is electrical system problems. There are a number of components, circuits, and connections that must work seamlessly in order for your cooling system to operate. Even the smallest component failure can negatively impact your air conditioner. When you notice any type of problem, do be sure to contact the professionals on our team right away.

In the meantime, we’d like to share with you one of the most important electrical components of your AC system, and what happens when one goes bad. The capacitors are what we’re referring too. Without these, the motors that power your compressor and fans wouldn’t be able to work. Keep reading to learn more about what capacitors do and what can go wrong when one begins to fail.

Air Conditioner Capacitors?

This component is similar to a short-term battery, so to speak. Capacitors are small, cylindrical objects which can store energy within an electrostatic field. They are attached to motors and either send a jolt to start the motor up (the start capacitor) or a regular series of jolts to keep the motor running (appropriately called the run capacitor). In your cooling system, capacitors work within three various motors: the compressor, the blower motor, and the outside fan.

What Happens When They Fail?

Capacitors can sustain damage in a number of ways. Excess power from a surge can impact them, and they can wear down to the point that they can no longer hold a charge. As a capacitor begins to fail, you will typically hear a clicking sound from within the cabinet.

When a run capacitor dies, then the motor to which it’s attached will still attempt to run, however, you’ll probably notice a humming sound instead of the normal noise that a running motor makes. Do not neglect this, as doing so can cause the motor to burn out and require a full replacement.

To schedule professional air conditioner repairs in Richmond, TX, contact Fresh Air, L.P. today!

Comments are closed.

Award Winning Customer Service

Signs Your Ductless System Needs Repairs

July 13, 2020

The technicians at Fresh Air, L.P. will be able to help with your repair services and we can help you figure out when you need to contact us for repairs.

Read More

Do You Have a Refrigerant Leak?

June 29, 2020

Here we have listed some of the key signals that indicate you have a refrigerant leak so you know when the time has come to schedule a repair and a recharge.

Read More

All Blog Posts

Serving the Greater Houston and Fort Bend area since 1971