Copeland Comfort Control (White Rodgers) 50A55-843 Ignition Module

The Copeland Comfort Control (White Rodgers) 50A55-843 is a microprocessor-based silicon carbide universal ignition module engineered for precise control of gas valves, inducer motors, and circulator fans in residential furnaces. Designed as a high-reliability furnace control board replacement, this 24V unit features advanced diagnostic flash codes to streamline troubleshooting on the job site. It serves as a direct drop-in for White Rodgers 50A55-843 and 50A50-241, while also replacing a wide array of OEM numbers including 031-01284-000, 102077-03, and D340774P01. The module manages the ignition sequence and furnace flame sensor feedback with high accuracy, ensuring efficient burner operation and safety. Technicians can utilize the included comprehensive wiring kit and Trane-specific jumper to facilitate fast installation across diverse HVAC ignition control platforms. Integrated terminals for humidifiers and electronic air cleaners provide additional system integration capabilities for comprehensive climate control.

Key Benefits for Contractors

• Broad Compatibility: Replaces hundreds of White Rodgers, York, Lennox, and Trane part numbers, reducing the need for extensive van stock.
• Advanced Troubleshooting: Built-in LED diagnostics provide instant status updates and service codes for faster mechanical assessment.
• Robust Inductive Loads: Features a high-capacity circulator relay (14.5 FLA) and inducer relay (2.2 FLA) suitable for heavy-duty blower motors.
• Installation Ready: Includes a mounting template and a full wiring harness to adapt to legacy wire configurations without field modifications.

Common Questions

Is the 50A55-843 compatible with Nitride ignitors?
No, this specific module is designed for 120V Silicon Carbide ignitors. If your furnace uses a Nitride ignitor, you must use a compatible Nitride-specific control board to avoid component failure.

Can I use this to replace a Trane D341235P01?
Yes, the 50A55-843 is a direct universal ignition module replacement for Trane part D341235P01 and includes the necessary jumper wire for those specific applications.

What are the power requirements for the gas valve relay?
The valve relay is rated for 1.5 Amps @ 25 VAC, which is standard for most residential 24V gas valves found in HVAC repair scenarios.

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.