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CARRIER Control Board HK50AA051
$239.87
-
- Free shipping — most items ship by the next day
Licensed HVAC technician required. Must be installed by a certified professional. Improper installation voids the manufacturer warranty.
Secure payment
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CARRIER Control Board HK50AA051
Licensed HVAC technician required. Must be installed by a certified professional. Improper installation voids the manufacturer warranty.
Need help? (888) 292-0874
- Free shipping — most items ship by the next day
Secure payment
VISA MC AMEX DISC PayPal Affirm CHECK
In stock
In most items, small items ship same day. Complete systems ship next business day.
$239.87
-
Need help? (888) 292-0874
- Free shipping — most items ship by the next day
Secure payment
VISA MC AMEX DISC PayPal Affirm CHECK
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.
CARRIER Control Board HK50AA051
The Carrier HK50AA051 is a genuine OEM Terminal Board (also referred to as a control or circuit board) designed for seamless integration into Carrier HVAC systems. It serves as the central wiring termination and connection point in control enclosures, facilitating stable electrical connections between components like thermostats, sensors, compressors, fans, and other system controls.
Compatible Manufacturers
- Carrier
- Bryant
- Payne
This board is a direct OEM replacement (replaces older part numbers such as HK50AA049, CEBD430904-12-RA, CESO130003-01, CESO130003-00, and others). It ensures perfect fit and compatibility across these affiliated brands.
Key Features
- Precise OEM Design: Manufactured to exact Carrier specifications for drop-in replacement and reliable performance.
- Robust Terminal Connections: Provides secure, stable wiring interfaces to prevent loosening and maintain consistent conductivity.
- Compact & Lightweight: Approximately 6.25″ × 4″ × 1.25″ – fits easily into control boxes of rooftop units (RTUs) and packaged systems.
- Heat Pump Compatible: Includes jumper configurations for heat pump detection and operation.
- Durable Construction: Built for long-term reliability in demanding commercial and residential HVAC environments.
Benefits
- Restores Optimal System Performance: Quickly resolves wiring or control issues, minimizing downtime in packaged units and rooftop systems.
- Proven Reliability: Factory Authorized Parts meet Carrier’s high standards, ensuring efficient operation and extending equipment life.
- Easy Installation: Direct replacement reduces service time and labor costs for HVAC technicians.
- Enhanced Safety & Efficiency: Reliable connections help prevent electrical faults, support accurate signal transmission, and maintain proper system regulation (including heat pump modes).
- Cost-Effective Solution: Genuine OEM quality at a competitive price compared to full system repairs.
Compatible Systems
This terminal board is commonly used in Carrier, Bryant, and Payne rooftop units (RTUs) and packaged HVAC systems, including (but not limited to) models in the following series:
- 48HC series (e.g., 48HCDA04, 48HCDA05, etc.)
- 48KC series
- 50TC series
- 50KC series
- 48LC series
- Various heat pump and packaged rooftop configurations
Always verify compatibility with your specific unit model number and service manual before installation. Professional installation by a qualified HVAC technician is recommended.
Why homeowners choose NAW
Genuine OEM parts
Every part we sell is the real thing — authorized, factory-genuine, and backed by the full manufacturer warranty.
Easy online ordering
Find your part by model number, add to cart, and get it delivered to your door — no middleman, no markup.
30-day hassle-free returns
Ordered the wrong part? Send it back within 30 days.
Help when you need it
Not sure if this is the right part? Call us at (888) 292-0874 and we’ll help you find the correct replacement.
Customer reviews
What buyers are saying
Verified reviews from customers who purchased this product.
5.0
4 verified reviews
BF
Bert F
The CARRIER Terminal Control Board HK50AA051 blew me away with its impressive performance and reliability! For the price, this part exceeded my expectations, providing flawless operation and seamless integration—truly a top-notch product!
TD
Travis D
The Carrier Terminal Control Board HK50AA051 exceeded all expectations with its flawless performance and impressive efficiency! It’s an incredible value for its price, making it a must-have for anyone seeking top-tier HVAC system reliability.
RT
Robert T
I was blown away by the performance of the Carrier Terminal Control Board HK50AA051—it’s a game-changer! Not only is it priced exceptionally well, but its reliability and efficiency have drastically improved my system’s operation.
RG
Robert G
The CARRIER TERMINAL CONTROL BOARD HK50AA051 blew me away with its reliability and seamless integration! At this price, it’s an unbeatable upgrade for any system, delivering exceptional performance!
