Contactors
HVAC contactors are electromechanical switches that are critical to thermostat-controlled operations of HVAC systems. HVAC Contactors work by controlling the flow of electricity within systems, activating or deactivating high-voltage parts like fans or blowers as signaled by the thermostat. They may also be referred to as 2-pole contactors, as they control the power to 2 different components of the system, like the compressor and condenser fan....Read more
As HVAC contactors transfer power from electrical panels to the motorized components of the system, they are crucial to its operation and safety. Contactors ensure energy efficiency and system responsiveness and they prevent electrical overloads and system failures. Failed contactors can lead to burnt wiring, tripped breakers, energy waste, and damage to compressors. If a contactor is wearing or has failed, you’ll notice signs of pitting to due arcing, buzzing, or failure to engage. Depending on usage, HVAC contactors should be replaced every 3-5 years or as soon as it is experiencing wear and tear. It’s best to perform inspections on all 2-pole contactors during seasonal system tune-ups.
LONG PartsPros sells contactors for heat pumps, air conditioners, and other residential or commercial HVAC systems. They are often purchased along with capacitors and thermostats, so you can browse those parts as well to make sure you have everything you need to keep your systems working properly.