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TRANE Defrost Control Board CNT4363
$225.24
-
- 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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TRANE Defrost Control Board CNT4363
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.
$225.24
-
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.
TRANE Defrost Control Board CNT4363
The Trane CNT4363 (also referenced as CNT04363) is a high-quality OEM defrost control board designed specifically for Trane and American Standard heat pump systems. This essential HVAC component intelligently manages the defrost cycle on the outdoor coil, ensuring efficient operation during cold weather by preventing frost buildup that can reduce heating performance and system efficiency.
Key Features
- Precise Defrost Management: Monitors temperature and time to initiate and terminate defrost cycles only when necessary, optimizing efficiency and minimizing energy waste.
- OEM Quality Construction: Manufactured to exact Trane specifications for perfect fit, reliable long-term performance, and seamless integration with existing wiring harnesses.
- 24V Low-Voltage Operation: Compatible with standard HVAC control circuits for easy drop-in replacement.
- Durable Design: Built to withstand the demands of residential and light commercial heat pump applications.
Benefits
- Improved Energy Efficiency: Reduces unnecessary defrost cycles, helping lower utility bills while maintaining optimal heating performance in winter.
- Enhanced System Reliability: Prevents coil freezing issues, reduces wear on the compressor and other components, and extends the overall lifespan of your heat pump.
- Quick & Easy Installation: Direct OEM replacement minimizes downtime—ideal for HVAC technicians and homeowners seeking fast repairs.
- Year-Round Comfort: Ensures your heat pump operates flawlessly even in the coldest conditions, delivering consistent heating and defrost performance.
Compatible Manufacturers & Systems
- Primary Compatibility: Trane and American Standard heat pumps.
- Commonly Used In: Residential split-system heat pumps (e.g., models like WCK series and similar Trane/American Standard units).
- Note: Always verify your specific model number for exact fit, as it is engineered primarily for Trane/American Standard OEM applications.
Whether you’re a homeowner dealing with a faulty defrost cycle or a professional technician looking for a reliable OEM part, the Trane CNT4363 delivers factory-level performance you can trust. Restore your heat pump’s efficiency and enjoy worry-free comfort all winter long.
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
5 verified reviews
PS
Porter S
The TRANE DEFROST CONTROL BOARD CNT4363 has been a game-changer for my HVAC system, delivering flawless performance at an unbeatable price. I’m beyond impressed with its reliability and efficiency—this upgrade truly exceeded my expectations!
RF
Remy F
The Trane Defrost Control Board CNT4363 has truly impressed me with its exceptional performance and unbeatable price! It restored my system’s efficiency with seamless operation, and I couldn’t be more satisfied with the quality and reliability of this product!
ED
Emma D
The Trane Defrost Control Board CNT4363 exceeded my expectations with its reliable performance and smooth operation. For the price, it’s an incredible value that ensures my HVAC system runs efficiently and trouble-free!
HF
Henry F
The Trane Defrost Control Board CNT4363 exceeded my expectations with its top-notch performance and flawless functionality. At an unbeatable price, it’s the perfect upgrade for ensuring efficient defrost cycles in our HVAC system!
RF
Robert F
The TRANE DEFROST CONTROL BOARD CNT4363 completely transformed my HVAC system’s efficiency, ensuring flawless operation even in the coldest conditions. The price was amazingly low for such a high-performing component, making it an outstanding investment for anyone needing reliable defrost control.
