50A55-843 Universal Integrated Fan Control for HVAC systems, new condition, operates at 25 VAC 50/60 Hz input voltage. Includes wiring harnesses and mounting screws.

• Universal fan control module compatible with all gases

• Input voltage: 25 VAC, 50/60 Hz

• Max input current: 0.45 amp

• Relay load ratings: Valve relay 1.5 amp @ 25 VAC, Ignitor relay 6.0 amp @ 120 VAC, Inducer relay 2.2 FLA-3.5 LRA @ 120 VAC, Circulator relay 14.5 FLA-25 LRA @ 120 VAC

• Operating temperature range: -40° to 175°F (-40° to 80°C)

• Humidity range: 5% to 93% relative humidity (non-condensing)

• Includes diagnostic indicator flash codes for troubleshooting

• Package includes fan control board, wiring harnesses, and mounting screws

This universal integrated fan control module is designed for reliable operation in heating and cooling systems. It provides controlled combustion, monitoring, regulation, fault detection, fan and blower control, and system startup/shutdown functions. The included diagnostic LED indicator simplifies troubleshooting with flash codes.

Thank you for your interest. Please message with any questions. Manufacturer specifications and description are listed below.

• Model: 50A55-843 Integrated furnace control board, compatible with White-Rodgers

• Perfect OEM replacement: Specifically designed to replace the 50A55-843 control board, ensuring 100% compatibility with Lennox furnace systems for worse-free operation.

• The 50A55-843 is an automatic gas interrupt ignition control that utilizes a microprocessor to continuously monitor, analyze and control the correct operation of gas burners, inducers and fans.

• It is widely used in household gas heating furnaces to provide stable heating for the cold season. The control panel is an integral part of the Lennox system, ensuring the proper operation and safety of the heating system.