White-Rodgers 50M56X-843 Universal Integrated Furnace Control

The 50M56X-843 is a versatile universal replacement for integrated furnace controls, designed to work with both PSC and ECMx blower motors. This advanced control board reduces inventory needs by replacing over 550 part numbers, making it an essential solution for HVAC professionals.

Key Features:

• Universal Compatibility: Supports multiple brands, including Carrier, Goodman, Lennox, Trane, Rheem, York, and Nordyne.
• PSC & ECMx Blower Motor Support: Easily configurable for different furnace systems.
• Smart Configuration & Diagnostics: White-Rodgers Connect App allows for quick setup and troubleshooting—no power required.
• Plug-and-Play OEM Harness Detection: Automatically detects compatible harnesses without requiring additional adapters.
• 120V Nitride Ignitor Included: Ensures reliable ignition performance.
• 7-Segment LED Display: Provides unlimited configuration options for customized setups.
• Simplified Wiring: Thermostat connector block for easy installation.
• No Rollout Accessory Needed: Streamlined design eliminates unnecessary components.

Technical Specifications:

• Operating Temperature: -40°F to 175°F
• Ambient Humidity Range: 5% to 93% RH
• Electrical Rating: 25 Vac, 60Hz
• Ignition Type: Hot Surface Ignition (HSI), 120V
• Circulator Relay Current:
  • Full Load Amps (FLA) @ 120V: 14.5A
  • Locked Rotor Amps (LRA) @ 120V: 25.0A
• Mounting: Flush Mount
• Twinning Compatibility: Yes
• Thermostat Inputs: R, C, W, Y/Y1, Y2, G, DHUM
• Certifications: c-UL-us
• California Prop 65 Warning: Cancer or Reproductive Harm
• Country of Origin: Mexico
• UPC: 786710566837

With universal compatibility, smart diagnostics, and simplified installation, the White-Rodgers 50M56X-843 is the go-to solution for discontinued boards.

This board is not made for someone to plug and go, there is some work involved in configuring it correctly.

If you want to confirm that this will work for you, please contact us with your furnace model and serial number.