OEM Carrier Definite Purpose Contactor Relay for PH15NA01800GBAAA

The contactor is the high-voltage switch your thermostat uses to power the compressor and condenser fan. A 24V coil pulls the contacts closed, and those contacts carry the full 230V load to the outdoor components. When the contactor fails you'll get no cooling or heating, a unit that won't start, or a loud buzzing and chattering at the outdoor cabinet. Worse, the contacts can weld shut so the compressor runs nonstop even with the thermostat off, or they pit and burn until they arc and drop the load intermittently. Insects and debris lodged between the contacts are a frequent cause on ground-level and rooftop units. This is a definite purpose contactor for the Carrier PH15NA package unit — commonly a 1- or 2-pole design with a 24V coil and contacts rated in the 30-40 FLA range. Match the pole count, contact amp rating, and coil voltage to your original; pulling in a contactor with the wrong coil voltage or undersized contacts leads to fast pitting and welding. OEM matters because the wrong contact rating fails early under load. OEM contactors use silver-alloy contacts rated for this unit's locked-rotor amps, while generic copper or thin-plated contacts arc, pit, and weld — leaving you with a compressor that either won't shut off or won't start at all. Install difficulty: 2/5. Tools: 1/4" nut driver, needle-nose pliers, multimeter, and a phone camera to record the wiring. Safety first: kill power at the breaker and the outdoor disconnect before touching anything — the line-side terminals stay live at 230V even when the contactor is open and the thermostat is off. Ships same business day from our stocked warehouse on orders placed before 3 PM CST. Backed by a 1-year OEM warranty and 30-day hassle-free returns on uninstalled parts.

Compatibility

This part is compatible with Carrier model PH15NA01800GBAAA. Always verify the part number against your unit's data plate before ordering.

Why Choose OEM?

OEM parts are manufactured to the exact factory specifications for your unit. Generic aftermarket alternatives may fit physically but often use lower-rated components that reduce equipment life and void manufacturer warranties. When the cost difference between OEM and generic is $10-30, the OEM part is always the smarter investment on a system worth $5,000-$15,000.

Shipping & Returns

Same-day shipping on orders before 3 PM CST. Standard delivery 2-5 business days, express options available at checkout. 30-day hassle-free returns on uninstalled parts — free return shipping included. 1-year OEM factory warranty coverage.