ICP Tubing Pressure Switch for WPG3244040RKC1 — OEM Furnace Switch | Ships Today
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Overview
This genuine OEM tubing pressure switch (part #1178417) is the combustion safety switch for the ICP/Tempstar/Heil WPG3244040RKC1 packaged gas/electric unit. The switch monitors the negative pressure created by the inducer/draft motor through its sensing tube. Before the control board allows the igniter and gas valve to energize, the pressure switch must prove that the venting and inducer airflow are correct — protecting against blocked flues and unsafe combustion. A failed switch, a cracked sensing tube, or a clogged port will prevent the furnace from firing or cause it to lock out, even when the inducer is running.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1178417 |
| Type | Tubing Pressure Switch |
| Brand | ICP / Tempstar / Heil |
| Function | Draft / Venting Proving Switch |
| Application | Gas Furnace / Packaged Unit |
| Fitment | OEM |
Compatibility
Direct factory replacement for the ICP WPG3244040RKC1 packaged unit and used across matching gas-fired packaged systems and furnaces in the Tempstar, Heil, and Comfortmaker families. Confirm the pressure setpoint stamped on the original switch and the sensing-tube port configuration before installing.
Installation Guide
- Safety First — Disconnect power at the breaker and shut off the gas supply, then verify zero voltage with a multimeter.
- Access — Remove the service panel to reach the inducer and pressure switch.
- Document — Photograph the sensing tube routing and electrical spade connections.
- Remove — Pull the sensing tube and wires, then unscrew the old switch from its bracket.
- Install — Mount the new switch, reattach the sensing tube without kinks, and reconnect the wires per your photo.
- Test — Restore power and gas, start a heat cycle, and confirm the switch closes and the burners light.
Signs You Need a Replacement
- Furnace locks out on a pressure-switch fault with the inducer running
- No ignition despite a confirmed call for heat
- Cracked, blocked, or disconnected sensing tube
- Switch fails to close or stuck-open/stuck-closed readings on a meter
Shipping & Returns
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
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