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The run capacitor is the energy-storage component that keeps your PY3PPA048130NA's compressor and condenser fan motor spinning efficiently after startup. It stores and releases charge to hold the phase shift these single-phase motors need to run. When it weakens or fails you'll hear the outdoor unit humming but not starting, see a condenser fan that won't spin (or only spins with a push), feel warm air at the registers, notice the unit short-cycling, or trip the breaker. A bulging, domed, or oil-leaking top is a sure sign it's done. This genuine dual run capacitor is matched to the exact MFD (microfarad) and voltage ratings your unit was engineered for — for this 4-ton class that is typically a dual 35/5 MFD rated 440/370 VAC (always confirm against the markings on your old capacitor). OEM parts hold a tight ±5% tolerance, so the compressor and fan motor receive precisely the charge they were designed for. Why OEM matters here: cheap aftermarket capacitors often carry a wide ±10–15% tolerance and lower-temperature dielectric film. An out-of-spec MFD stresses the compressor start and run windings, raises operating temperature, and shortens compressor life — the most expensive part of the system. The genuine capacitor protects that investment. Install difficulty: 2/5. Tools: insulated screwdriver, 1/4" and 5/16" nut drivers, a multimeter, and needle-nose pliers. #1 safety warning: a capacitor stores a lethal charge even with the power off — pull the disconnect, then DISCHARGE it by bridging the terminals with an insulated screwdriver before touching any leads. 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 PY3PPA048130NA. 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.