Description The Heatcraft FTC5-EH04 is a fan timer control module designed to manage blower timing functions in Lennox HVAC systems. It regulates fan on-delay and off-delay operations to ensure proper airflow and heat distribution. The FTC5-EH04 is commonly used as a replacement for Lennox part number 97H03 in compatible heating and cooling equipment. Technical Specifications Condition New/Never Used Surplus Brand Heatcraft Category HVAC Control Boards Part Number FTC5-EH04 Subcategory Fan Timer Controls Device Type Fan Timer Module Compatible Replacement Lennox 97H03 Control Voltage 24 V Function Blower Fan Timing Control Application Heating and Cooling Systems Mounting Type Internal HVAC Control Mount Operating Environment Residential and Light Commercial HVAC Construction Electronic Control Module Duty Cycle Continuous Operation Weight Approx. 0.5 lb (0.23 kg) Information About FTC5-EH04 The FTC5-EH04 is a fan timer control used in Heatcraft and Lennox HVAC systems to coordinate blower motor operation during heating and cooling cycles. It is engineered to provide precise timing control that improves system efficiency and comfort. The module integrates directly into existing control circuits, supporting reliable fan sequencing without complex adjustments. Its compact design and durable electronics make it suitable for long-term operation in residential and light commercial HVAC environments. Key Features: Fan Timer Control Module: Regulates blower fan on-delay and off-delay timing. Lennox System Compatibility: Designed as a replacement for Lennox part number 97H03. Heatcraft HVAC Application: Used in Heatcraft-supported heating and cooling equipment. Improved Airflow Management: Ensures proper heat transfer and system efficiency. 24V Control Circuit Operation: Compatible with standard low-voltage HVAC controls. Reliable Timing Accuracy: Provides consistent fan sequencing during system cycles. Compact Control Design: Fits easily within standard HVAC control compartments. Durable Electronic Construction: Built to withstand electrical and thermal stresses. Service Replacement Component: Ideal for restoring proper fan operation in HVAC systems. The FTC5-EH04 delivers the reliability and precision required for blower fan timing and HVAC airflow control applications.