Heil 1000742 24-Volt Fan Control Relay SPDT

The Heil 1000742 is a genuine OEM 24-volt fan control relay designed for use in Heil, Tempstar, Comfort Maker, and ICP furnace systems. This case-mounted relay is an essential component that controls the furnace blower fan operation, ensuring proper air circulation throughout your HVAC system.

Key Features:

• 24-volt AC coil operation for low-voltage control circuits
• Single Pole Double Throw (SPDT) configuration for versatile switching applications
• Case-mounted design for secure installation
• Genuine OEM part ensuring proper fit and reliable performance
• Compatible with multiple brands including Heil, Tempstar, Comfort Maker, and ICP

Cross-Reference: This relay also replaces part number HQ100742XM and is used in various Heil furnace models. The relay functions by using a low-voltage 24 VAC coil to energize and control higher voltage circuits, typically 120-240 volts, making it a critical safety and control component in residential furnace systems.

This genuine Heil replacement relay ensures your furnace blower operates correctly, maintaining proper heating performance and system efficiency.