ICP Pressure Switch Tubing for WPG4364060LKB1 — OEM Replacement | Ships Today

Overview

This OEM pressure switch tubing (part number 1178417, TUBING PRESSURE SWITCH) is the factory-spec hose that connects the pressure switch to the inducer/collector box on the ICP/Tempstar/Heil WPG4364060LKB1. The tubing carries the negative pressure signal the switch uses to confirm proper draft before the control board allows ignition. When the tubing cracks, kinks, clogs with condensate, or pulls loose, the switch reads a false fault — the system fails to light, locks out, or short-cycles on a pressure-switch error code even though the inducer is working.

Specifications

Compatibility

Direct OEM replacement for the pressure-switch tubing on the ICP/Tempstar/Heil WPG4364060LKB1 packaged unit and related WPG43-series models. Match routing and length against the original hose before installing.

Installation Guide

1. Safety First — Disconnect power and verify zero voltage with a multimeter; shut off the gas supply.
2. Access — Remove the service panel to reach the pressure switch and inducer assembly.
3. Document — Photograph the tubing routing and both connection ports before removal.
4. Remove — Slip the old tubing off the switch nipple and the collector/inducer port; discard cracked or clogged hose.
5. Install — Press the new tubing fully onto both ports, matching the original routing with no kinks or low traps.
6. Test — Restore power and gas, start a heat cycle, and confirm the switch proves and the burners light.

Signs You Need a Replacement

• Pressure-switch fault code with the inducer running normally
• Visible cracks, brittleness, or kinks in the hose
• Condensate or debris trapped inside the tubing
• Intermittent no-heat or short-cycling on ignition

Shipping & Returns

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