ICP Pressure Switch for WPG4244060LKB1 — OEM Tubing Pressure Switch | Ships Today

Overview

This OEM tubing pressure switch (part #1178417) is the combustion air-proving safety for the ICP WPG4244060LKB1 packaged gas-electric unit. The switch is connected by tubing to the inducer/vent system and confirms proper draft before the control board allows the gas valve to open. If the inducer fails to establish the required negative pressure — due to a blocked flue, condensate backup, or a weak inducer — the switch stays open and locks out ignition to prevent unsafe combustion. It's a critical safety device and a common cause of no-heat lockouts.

Specifications

Compatibility

Factory replacement for the ICP / Tempstar / Heil WPG4244060LKB1 packaged unit's pressure-switch circuit. Fits related ICP-family gas-electric units calling for the same tubing pressure switch — match the switch's pressure setpoint (in. W.C.) and tubing port against your original before installing.

Installation Guide

1. Safety First — Shut off gas and electrical power, then verify zero voltage with a multimeter.
2. Access — Remove the control / burner access panel.
3. Document — Photograph the switch wiring and the tubing routing before disconnecting.
4. Remove — Pull the tubing off the port, disconnect the spade terminals, and unscrew the old switch.
5. Install — Mount the new switch, reconnect the wiring, and firmly seat the tubing on the port per your photo.
6. Test — Restore gas and power, start a heat call, and confirm the inducer proves and the burners light without lockout.

Signs You Need a Replacement

• No heat with a pressure-switch fault code on the control board
• Inducer runs but the burners never light
• Switch fails to close even with verified draft, or sticks closed at rest
• Intermittent lockouts that clear after power cycling

Shipping & Returns

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