The Carrier EF17BG247 is a critical 4-way reversing valve engineered specifically for heat pump systems requiring precise refrigerant flow control. As an OEM Carrier replacement part, this valve features a 24V solenoid coil designed to interface seamlessly with standard 24-volt control circuits. With port configurations of 3/4" x 1/2", it facilitates the essential transition between heating and cooling cycles by reversing the refrigerant flow direction through the indoor and outdoor coils. For a veteran technician, the EF17BG247 provides the necessary reliability to restore system efficiency, especially when diagnosing a stuck reversing valve or a failing solenoid coil that prevents proper mode changeovers.

During HVAC troubleshooting, this low voltage reversing valve is the professional choice for resolving issues where a heat pump is stuck in one mode or bypassing internally. The robust construction ensures it handles the pressure differential required for the internal slide mechanism to operate under high-stress conditions. Built to Carrier specifications, this component eliminates the compatibility risks associated with universal aftermarket valves, ensuring the HVAC reversing valve operation remains consistent with original equipment performance standards.

• Direct OEM Replacement: Ensures exact fitment and port alignment for Carrier EF17BG247 applications, reducing brazing time and mechanical strain.
• Efficient Cycle Switchover: Reliable 24V coil performance ensures crisp response times when the thermostat calls for a heat pump mode change.
• Durable Internal Slide: Engineered to maintain a tight seal, preventing internal refrigerant bypassing that can lead to decreased capacity and high discharge temperatures.
• Industrial-Grade Construction: Designed to withstand the thermal cycling and vibration common in high-performance HVAC systems.

How do I verify if the EF17BG247 solenoid coil is functioning?
Using a multimeter, check for 24V at the coil terminals when the system calls for cooling (or heating, depending on the logic). You can also perform a "magnet test" by placing a small screwdriver near the energized coil to detect a magnetic field. If voltage is present but no magnetic field or "click" is detected, the coil may be open.

What are the signs of an internal leak in the reversing valve?
A valve that is bypassing will often show a low temperature differential (typically less than 3-4°F) between the suction line from the evaporator and the true suction line (middle bottom tube). This often mimics symptoms of a failing compressor, such as high suction pressure and low head pressure.

Does this valve default to heating or cooling mode?
As an OEM component for most Carrier platforms, the valve typically defaults to the heating mode when de-energized (failsafe for winter), though always verify your specific unit's wiring diagram and thermostat O/B terminal configuration during installation.

Notes

Item is Non Cancelable / Non Returnable

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.