How Does a Contactor Work

Quick, Honest & Affordable

Contactors are the switch to turn on your heat pump or air conditioning compressor and condenser fan. The switch is an electrical switch controlled by your thermostat and air handler or furnace. The thermostat sends a low voltage signal to an electromagnetic coil in the bottom of the contactor. When energized the coil pulls a metal rod through the coil. On one end of this rod is a connector plate that closes the gap on the high voltage power lines running to the compressor and condenser fan closing the circuit and energizing the compressor and fan. Sometimes the low voltage coil in the contactor breaks or shorts out and does not create the magnetic field to pull the metal rod through the coil. Other times the plate the rod pulls becomes corroded or the contact points become pitted which can prevent a full contact from occurring and preventing the compressor or fan from starting.

For Wake County Air Conditioning Repair, call Alexander Services

(919) 886-4822

 5/5

Experience our Award Winning Service

Join our Preferred Service Membership

Save 10% TODAY on your Repairs! Check out or Preferred Service Membership for all of its great Benefits!

Request Service

Please fill out the form below to schedule a service appointment.

Why Choose Alexander Services?

Not all companies are created equal. Check out what makes Alexander Services different.

FREE Diagnostics
with service or repair

Same-Day Service
is always our goal!

“Exact Time” Appointments
No time-windows. You’ll know exactly when we’ll be at your home

Upfront Pricing
No hourly charges, no hidden fees, no sales pressure – just honest repair and service.

Award-Winning Service
We have over a dozen awards for Service Excellence

Local Family Owned
in business since 2012

Cities We Serve

Alexander Services provides Heating, Air Conditioning, Electrical and Plumbing Services in the Greater Raleigh Area and surrounding areas. Offering both Commercial and Residential Services, we provide emergency services and are open 7 days a week to provide you quick, award-winning same-day service.

Raleigh
Chapel Hill
Durham
Brier Creek
Wake Forest
Angier
Willow Springs

Happy Customers is What We Do Best

Ava S

 5/5

I was able to get an appointment to tune up my AC unit the week following the week that I called. The technician was on time – wore a mask, gloves, and shoe coverings and endeavored to stick only to the thermostats and unit in the attic and went around to the back (I live in a town home) without going through my home. I truly appreciated this approach. The unit was serviced and the cost was very reasonable. I “found” this company because my daughter uses their services too and has been very happy with them.

Marc K

 5/5

The technicians were very professional and communicated very well about what they were doing. They worked outside in 90+ degrees and through a rain storm. I would recommend them for any plumbing services in the future.

Katrina W

 5/5

Niko and Joshua were awesome, very polite and answered questions. I’ve use this business for several years for plumbing and heating and air. They are very honest, respectful and trustworthy! Fair pricing!

or call (919) 886-4822

Home Of The Lifetime Warranty!

How Does a Contactor Work

Quick, Honest & Affordable

For Wake County Air Conditioning Repair, call Alexander Services

(919) 886-4822

Why Choose Alexander Services?

Cities We Serve