ICP Pressure Switch Tubing for WPG4424060RKB1 — OEM Sensing Line | Ships Today

Overview

This OEM pressure switch tubing (part 1178417) is the sensing line that connects the inducer/collector box to the pressure switch on the ICP WPG4424060RKB1. The switch proves adequate draft before the gas valve and igniter are energized; if the tubing is cracked, kinked, melted, or clogged with condensate, the switch cannot read the correct negative pressure and the control board locks out ignition. Replacing aged or brittle tubing restores reliable pressure-proving and clears intermittent no-heat lockouts.

Specifications

Compatibility

Designed for the ICP WPG4424060RKB1 packaged unit and related WPG-series equipment under the ICP, Tempstar, Heil, and Comfortmaker brands. Verify routing length and fitting size against the original line.

Installation Guide

1. Safety First — Disconnect power, verify zero voltage with a multimeter, and shut off gas.
2. Access — Remove the service panel to reach the pressure switch and inducer.
3. Document — Photograph the tubing routing and port connections before removal.
4. Remove — Slide the old tubing off the switch port and inducer/collector box fitting, clearing any condensate.
5. Install — Route the new tubing the same path, fully seating both ends with no kinks or sags that trap water.
6. Test — Restore power and gas, start a heat cycle, and confirm the pressure switch closes and the burners light.

Signs You Need a Replacement

• Furnace locks out on "pressure switch open" faults
• Cracked, brittle, or melted sensing tubing
• Condensate or debris blocking the line
• Intermittent no-heat with inducer running

Shipping & Returns

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