OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The definite-purpose contactor is the electrically controlled switch that powers your Carrier PH16NA03600GBAAA heat pump's compressor and outdoor fan motor. When the thermostat calls, the 24V control circuit energizes the contactor coil, pulling the contacts closed to deliver line voltage to the condensing unit. When this part fails you'll notice the outdoor unit going silent while the indoor blower still runs, a loud chattering or humming buzz from the contactor, contacts welded shut so the unit never shuts off, or no cooling despite a satisfied thermostat. Pitted, burned, or ant-infested contacts are one of the most common no-cool service calls. This is a 2-pole definite purpose contactor with a 24V control coil and 30-40 FLA contact ratings typical for a residential heat pump condenser. The OEM unit uses heavy silver-alloy contacts and a correctly tensioned coil that pulls in cleanly without chatter. Verify your unit's contact amperage and coil voltage against the existing contactor before ordering. A contactor with undersized or thinly plated contacts pits and arcs faster, raising contact resistance until the contacts overheat, weld, or drop voltage to the compressor — which can stall the windings and cause hard-start failures. OEM contacts are sized to the condenser's locked-rotor amperage; generic substitutes often skimp on contact mass and coil quality, leading to chatter, premature pitting, and repeat failures. Install difficulty: 2/5. Tools: 1/4" and 5/16" nut drivers, needle-nose pliers, a multimeter, and a phone to photograph the wiring first. #1 safety warning: kill power at the disconnect AND the breaker before touching — the line side stays hot even with the thermostat off, and contactor terminals carry 240V. 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.
This part is compatible with Carrier model PH16NA03600GBAAA. Always verify the part number against your unit's data plate before ordering.
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.
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.