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This replacement circuit board fits a wide range of Carrier-produced fan coils and furnaces
as repeated tripping indicates a serious underlying airflow or combustion issue
requiring only a standard drill opening and 3/8" tubing for port connection
Reliable Insulation: Integrated mica washers prevent internal shorting
Key Benefits: Precise Thermal Protection: Engineered to open at exactly 170°F to protect the heat exchanger from overheating conditions
White-Rodgers 90-290Q Relay This replacement circuit board fitsThe White Rodgers 90 290Q Relay is a heavy duty, 24V single pole normally open (SPNO) switching solution designed for high reliability in HVACR control circuits. As a veteran preferred fan relay, this unit features a Type 84 enclosed design, making it an ideal choice for managing single or two speed fan motors, solenoids, and resistive loads. With a contact rating of 8 Amps inductive and 16 Amps resistive at 125 250 VAC, the 90 290Q provides
