ICP Pressure Switch Tubing for WPG4484130RKA1 – OEM Replacement | Ships Today

Overview

This OEM pressure switch tubing (part number 1178417) is the factory replacement hose that connects the pressure switch to the inducer assembly on the ICP/Tempstar/Heil WPG4484130RKA1. The tubing carries the negative pressure signal that lets the pressure switch confirm the inducer is moving combustion air before the control board allows ignition. Cracked, kinked, brittle, or condensate-clogged tubing produces a false pressure-switch reading, which blocks ignition and locks the unit out on a pressure-switch fault even when the inducer is running normally.

Specifications

Compatibility

Direct OEM replacement tubing for the ICP / Tempstar / Heil WPG4484130RKA1 packaged unit. Confirm hose routing and length against the original before installing.

Installation Guide

1. Safety First – Disconnect power at the breaker and verify zero voltage with a multimeter.
2. Access – Remove the service panel to reach the pressure switch and inducer ports.
3. Document – Photograph the existing tubing routing and port connections.
4. Remove – Pull the old tubing off the pressure switch and inducer barbs, inspecting both ports for blockage.
5. Install – Press the new tubing firmly onto both barbs, matching the original routing with no kinks or low spots.
6. Test – Restore power and confirm the unit ignites without a pressure-switch lockout.

Signs You Need a Replacement

• Pressure switch fault or ignition lockout codes
• Cracked, brittle, or kinked tubing
• Condensate or debris trapped in the hose
• Inducer runs but ignition never starts

Shipping & Returns

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