Original had 3 wires coming from the capac instead of three labeled spade connectors. two red, one brown. brown to b, 1 red to c. any wiring help?

What I did was had label facing me. And I removed one wire at a time matching each move

My furnace makes a big hum when starting the blower motor. Could the problem be a weak capacitor?

Only if it has a weak one. These are normally found at A/C compressors.

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45+5 uf MFD 370/440 Volt Dual Run Round Capacitor 45/5/440R Condenser Straight Cool/Heat Pump Air Conditioner

Product ID: 417790077

Details

Brand
The HVAC
Capacitance
45 Microfarad
Material
Metal
Operating voltage
440 Volts
Shape
Round

⚡45+5 µF dual capacitance

🔋440V high voltage rating

🛡️Built to USA EIA-456-A & IEC standards

Description

⚡ Power your comfort with precision and reliability!

DUAL POWER BOOST - Supports both compressor & fan motors in one sleek round design, saving space and installation hassle.
HIGH VOLTAGE RESILIENCE - Rated for 440V, ensuring longer life and superior performance over standard 370V capacitors—no premature failures here.
BUILT TOUGH BUILT SMART - Meets rigorous USA and international standards (EIA-456-A, IEC 60252-1:2001) for reliable, long-lasting HVAC operation.
PRECISION FIT VERSATILITY - Compact 2-3/8" x 4" size fits most units, replacing multiple OEM part numbers effortlessly.
DIY FRIENDLY COST EFFECTIVE - Easy to install with universal compatibility—save hundreds on professional replacements and avoid downtime.

The HVAC Genius 45+5 µF dual run capacitor is a robust, round metal capacitor designed for 440V AC systems, combining two capacitors into one unit to support both compressor and fan motors. Engineered to meet strict USA and international standards, it fits a wide range of HVAC models, offering a durable, space-saving, and cost-effective solution for air conditioner and heat pump maintenance.

Specifications

ASIN	B07F2S59XF
Brand Name	The HVAC Genius
Capacitance	45 Microfarad
Customer Reviews	4.7 4.7 out of 5 stars (932)
Global Trade Identification Number	00850002496024
Item Dimensions W x H	6.2W x 11.2H centimeters
Item Shape	Round
Manufacturer	The HVAC Genius
Material Type	Metal
Maximum Voltage	440 Volts
Model	45-5 MFD Round
Operating Voltage	440 Volts
Part Number	THVAC-CAP-Parent
UPC	850002496024 817506023163
Upper Temperature Rating	85 Degrees Celsius

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