OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
This OEM run capacitor delivers the steady phase shift that lets the blower motor in your Carrier UPFLOW100U48M19 start and run at full torque. It continuously stores and releases charge to keep the motor's auxiliary winding energized. As the capacitor degrades, you'll see classic symptoms: a motor that buzzes or hums without spinning up, a blower that runs hot and cycles on thermal overload, slow start-up, tripped breakers, or weak airflow. A swollen top or oily residue on the can means it's already failed. Specs: rated to the exact MFD value and voltage printed on your motor and unit data plate, held to a precise ±5% tolerance, 370/440 VAC dual-rated. Capacitance sets the motor's running phase angle and current draw, so the ±5% window is what keeps the motor inside its efficiency and temperature design range. Why OEM matters: generic capacitors are typically manufactured to ±10-15% tolerance with cheaper dielectric film, drifting out of spec within a season or two. The wrong capacitance forces the motor windings to run hotter and pulls excess current, shaving years off motor life. OEM construction holds rated value and voltage across thousands of thermal cycles. Install difficulty: 2/5. Tools: 1/4" nut driver, insulated screwdriver, multimeter with capacitance mode. #1 safety warning: DISCHARGE THE CAPACITOR before handling — it holds a hazardous charge even after the breaker is off. Bleed the terminals through a resistor or insulated screwdriver and cut power at the breaker before disconnecting leads. Ships same business day from our stocked warehouse on orders 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 UPFLOW100U48M19. 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.