ICP Tubing Pressure Switch for WPG3244060LKC1 — OEM 1178417 | Ships Today

Overview

This OEM tubing pressure switch (part number 1178417) is the draft-proving safety device on the ICP Tempstar/Heil WPG3244060LKC1 packaged gas furnace. It monitors the negative pressure created by the inducer/draft motor and confirms proper venting before allowing ignition. If adequate draft is not sensed, the switch keeps the gas valve closed to prevent unsafe combustion. A failed switch — stuck open, stuck closed, or with a cracked sensing tube — will block ignition or cause repeated lockouts. Common symptoms include the inducer running but the burners never lighting, ignition lockout after a few attempts, or an error code indicating a pressure switch fault.

Specifications

Compatibility

Direct OEM fit for the ICP Tempstar Heil WPG3244060LKC1 packaged gas system. Pressure switch trip points are model-specific, so always match the original part number rather than substituting a switch with a different rating.

Installation Guide

1. Safety First — Disconnect power and shut off the gas supply. Verify zero voltage with a multimeter.
2. Access — Remove the control/burner service panel to reach the switch.
3. Document — Photograph the wire terminals and sensing tube routing before disconnecting.
4. Remove — Slip off the sensing tube, disconnect the spade terminals, and remove the mounting screw.
5. Install — Mount the new switch, reconnect the tubing and terminals per your photo, and confirm the tube is free of kinks or moisture.
6. Test — Restore gas and power, run a heat cycle, and confirm the inducer proves draft and the burners ignite.

Signs You Need a Replacement

• Inducer motor runs but burners never light.
• Furnace locks out on a pressure switch fault code.
• Switch fails a continuity test when draft is present.
• Cracked, clogged, or disconnected sensing tube.

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.