Carrier HK42PG004 Control Board

For field technicians and contractors, the Carrier HK42PG004 Motor Control Board is the essential OEM HVAC replacement part required to restore blower motor assembly functionality in compatible Carrier, Bryant, and Payne furnaces and air handlers. This integrated furnace control is a direct 1175594 replacement, engineered to handle precise motor speed regulation and timing for optimal HVAC airflow management. Utilizing advanced microprocessor logic, the HK42PG004 board monitors voltage and current in real-time to protect against electrical faults while ensuring the ECM motor or standard blower operates according to thermostat demands.

When diagnosing a system where the furnace blower is not working or the condenser fan motor is unresponsive, this factory-authorized circuit board provides the exact calibrated response needed for fail-safe operation. Its direct fit installation ensures that lead times are minimized and system efficiency is restored without the need for field modifications. This motor control board is designed for durability in high-demand residential and commercial environments, maintaining stable performance across a wide HVAC operating temperature range.

Key Benefits:

• OEM Compatibility: Genuine Carrier HK42PG004 ensures a perfect match for models including 359BAV and PG9MTAV series.
• Direct Cross-Reference: Verified 1175594 replacement, eliminating technical guesswork during the swap-out.
• System Protection: Integrated overload and short circuit protection prevents damage to expensive blower motors.
• Precise Airflow: Regulates motor torque and speed to maintain consistent HVAC system performance and energy efficiency.
• Diagnostic Reliability: Simplifies troubleshooting with standardized wiring interfaces for quick field connection.

Common Questions:

Will this board fix a furnace blower that isn't turning on?
Yes, if your diagnostic confirms the motor is receiving power but the relay or logic on the existing motor control board has failed, the HK42PG004 will restore operation.

Can I use the HK42PG004 as a substitute for part number 1175594?
Absolutely. This part is the official direct replacement for the 1175594 and is designed to meet or exceed its original technical specifications.

Is programming required for this motor control board?
This OEM Carrier part is designed for specific equipment series; however, always verify dip switch settings against the original board and unit wiring diagram to ensure specific airflow timings are correctly configured.

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.