OEM Payne Run Capacitor for PA4ZNA030000AA AC Condenser Unit

The run capacitor in your Payne PA4ZNA030000AA condensing unit delivers the steady phase-shifted charge that keeps the compressor and condenser fan motor running at full efficiency. A capacitor is the single most common reason an outdoor AC unit quits in summer. When it fails you'll hear the unit humming with a fan that won't turn, watch the compressor try to start and trip the breaker, feel only warm air at the vents, or notice the system short-cycling on and off. A bulging or leaking top is visual proof of failure. This dual-run capacitor serves both the compressor (HERM) and fan (FAN) terminals and is supplied in roughly the 30/5 to 40/5 MFD range at 440 VAC for this 2.5-ton class. The microfarad value is the spec that matters most, and the OEM part is built to a precise ±5% tolerance so each motor receives the exact charge it was designed around. Why OEM matters here: budget aftermarket capacitors commonly carry ±10–15% tolerance and use lighter foil and cheaper dielectric film. A capacitor that reads out of spec forces the compressor windings to pull higher amperage and overheat, quietly shortening the life of the most expensive part in the system. Correct MFD is cheap insurance against a compressor failure. Installation difficulty: 2 of 5. Tools needed: 1/4" nut driver, insulated flathead screwdriver, and a multimeter for verification. SAFETY — capacitors store a dangerous charge even after power is off: shut off the disconnect AND short the terminals with an insulated screwdriver to discharge before handling any wiring. Snap a photo of the terminal layout first. 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 Payne model PA4ZNA030000AA. 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.