Air Conditioner Switch Parts

OEM Air Conditioner Switch Parts for All Major Brands

Air conditioner switches—including contactors, thermostats, selector switches, and power switches—are the backbone of your cooling system's electrical control. When your unit won't power on, won't respond to thermostat changes, or cycles erratically, a faulty switch is often the problem. These switches handle high electrical loads and wear out over time, especially in units running during peak summer heat.

We stock genuine replacement switches for, and every other major brand in our catalog. Browse our air conditioner switch parts to find the exact contactor, selector, or thermostat switch your model requires.

• Unit won't turn on despite power at the outlet: Power switch or contactor failure
• Thermostat changes don't trigger cooling: Selector switch or limit switch problem
• AC powers on then immediately shuts down: Safety switch or thermal overload switch engaged
• Clicking sound but no compressor start: Contactor not engaging properly

Find your part: Enter your air conditioner model number above to locate the correct switch assembly.

Air Conditioner Switch Replacement Guide

Switches control everything from power delivery to temperature sensing. Here's what you need to know.

What's the difference between a contactor and a selector switch?

A contactor is an electrical relay that turns the compressor and condenser fan motor on and off based on signals from your thermostat. A selector switch lets you choose between cooling, heating (if available), and off modes. Both can fail independently, but a faulty contactor is more likely to prevent your AC from starting entirely.

How do I know if my air conditioner switch is stuck or failing?

Listen for a clicking sound when you adjust the thermostat—this indicates the contactor is trying to engage. If you hear repeated clicking with no compressor start, the contactor coil is weak or the contacts are burned. A humming unit that won't cool suggests a stuck selector switch preventing the compressor from receiving power. Visual inspection may show pitting or burned contacts inside the switch housing.

Are air conditioner switches, or do I need a brand-specific part?

While some switches share similar specifications across brands, most air conditioners use model-specific or brand-specific switch assemblies with unique mounting brackets, voltage ratings, and connector types. Installing a wrong switch can cause electrical damage or complete system failure. Always match your replacement to your exact model number and part specification.

Can I replace an air conditioner switch myself?

Switch replacement often involves working with high-voltage circuits, which carries real electrical hazard. If you're experienced with AC repair and comfortable working with 240V systems, you can attempt it—but most homeowners should hire a licensed HVAC technician. The cost of professional service is worth the safety and model-specific fit and performance you gain.

Shop Air Conditioner Switch Replacement Online

Ensure your air conditioner's reliable operation with genuine switch replacement parts. Whether you're a homeowner or a professional technician, ordering air conditioner switch parts online is simple and convenient. Use our model number or part number lookup to quickly find the exact replacement you need. Plus, Our same-day shipping ensures you get your parts fast, minimizing any downtime. For more repair guidance, visit our Air Conditioner Repair Help page. Find reliable switch replacements and other Air Conditioner parts to keep your cooling system running smoothly.

Filter Air Conditioner Parts by Your Model Number

Skip the guesswork on fit by starting with your air conditioner's model number, usually printed on the exterior nameplate on the condenser. If it's not there, check the side of the cabinet or look inside the access panel, where the equipment label may also list the model and serial numbers. Record the model number exactly, including letters, numbers, and dashes. Enter it in the search bar to filter this page to the parts that fit your model. The model number applies to the entire air conditioner, so it narrows the catalog across all associated part categories. That means fewer wrong orders and a faster repair.