ICP Pressure Switch for WPG3484130RKC1 — OEM with Tubing | Ships Today

Overview

This OEM pressure switch with tubing (P/N 1178417) proves that the induced-draft inducer is moving combustion air before the control board allows the burners to light in the ICP WPG3484130RKC1 packaged unit. It is a critical safety device: if the venting is blocked or the inducer is weak, the switch stays open and ignition is prevented. A failed switch, a cracked or clogged tube, or condensate-blocked ports will cause the furnace to lock out, short-cycle, or refuse to ignite even though the inducer is running.

Specifications

Compatibility

Designed for the ICP / Tempstar / Heil WPG3484130RKC1 packaged gas/electric unit and related WPG-series furnace sections. Match the part number and the switch's pressure set point (in. w.c.) stamped on the body before ordering.

Installation Guide

1. Safety First — Disconnect power and verify zero voltage with a multimeter.
2. Access — Remove the inducer-compartment service panel.
3. Document — Photo the switch, tubing routing, and electrical terminals before disconnecting.
4. Remove — Pull the spade terminals, disconnect the tubing, and unscrew the old switch from its bracket.
5. Install — Mount the new switch, route the new tubing without kinks or low spots that trap condensate, and reconnect the terminals.
6. Test — Restore power, start a heat call, and confirm the inducer starts, the switch closes, and the burners light.

Signs You Need a Replacement

• Furnace inducer runs but burners never light
• Repeated pressure-switch lockout codes on the control board
• Cracked, brittle, or condensate-clogged sensing tube
• Switch contacts stuck open or stuck closed when tested

Shipping & Returns

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