OEM Carrier Run Capacitor for PG9MAA036040ABKA 90% Gas Furnace

The run capacitor in your Carrier PG9MAA036040ABKA furnace provides the phase shift that lets the blower and fan motors start under load and then hold steady, efficient torque while running. Because it sits in a hot cabinet and cycles every time the unit runs, it is one of the most common parts to fail. When it weakens you'll typically hear a loud hum from a motor that won't spin, feel weak or no airflow at the registers, see short-cycling, or find the motor running hot and tripping the breaker — and sometimes the unit won't start at all on a call for heat or cool. A capacitor can that is domed, swollen, leaking oil, or rusted is conclusively bad and should be replaced right away. Electrically, run capacitors on this Carrier platform are typically dual-rated at 370/440 VAC with MFD (microfarad) values matched to the motors — commonly in the 30–45 / 5 µF range. This genuine OEM part holds a tight ±5% capacitance tolerance, the exact spec the motor was designed around. That tolerance is why OEM matters. Generic aftermarket capacitors frequently carry ±10–15% tolerance and lower-rated dielectric film. The wrong MFD over- or under-excites the windings, making the motor run hotter, pull more amperage, and fail years early — and a can rated only to 370V in a 440V circuit can bulge and rupture. Install difficulty: 2 of 5. Tools: 1/4" and 5/16" nut drivers, insulated needle-nose pliers, and a multimeter with a capacitance setting. #1 safety warning: a capacitor holds a live charge even after power is off — discharge it across both terminals with an insulated screwdriver or a 20k-ohm resistor before touching, and kill the breaker 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 Carrier model PG9MAA036040ABKA. 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.