ICP Pressure Switch for WPG4424060RKA1 — With Tubing | Ships Today

Overview

This OEM pressure switch assembly with tubing (OEM part 1178417, TUBING PRESSURE SWITCH) is the direct-fit safety control for the ICP / Tempstar / Heil WPG4424060RKA1 packaged gas/electric unit. The switch proves that the inducer/draft motor is moving combustion air before the control board allows the igniter and gas valve to fire. If the switch fails open, sticks closed, or its tubing cracks or clogs, the furnace will not ignite or will lock out on a pressure fault. This listing includes the factory switch and its sensing tubing.

Specifications

Compatibility

Engineered for the ICP-family WPG4424060RKA1 unit and its shared Tempstar, Heil, and Comfortmaker variants that use the same inducer and air-proving circuit. Match the switch set-point and port configuration to your original before ordering.

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-compartment service panel.
3. Document — Photograph the switch wiring and the tubing routing to the inducer/collector box.
4. Remove — Pull the spade terminals, slide off the sensing tube, and unscrew the switch from its bracket.
5. Install — Mount the new switch, route the new tubing without kinks, and reconnect the terminals per your photo.
6. Test — Restore gas and power, then watch a heat cycle to confirm the inducer starts and the switch proves before ignition.

Signs You Need a Replacement

• Furnace inducer runs but burners never light
• Lockout or fault code indicating an open/stuck pressure switch
• Cracked, clogged, or disconnected sensing tubing
• Switch fails a continuity/closure test under inducer draft

Shipping & Returns

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