What are the specs for this Pressure Switch?

The correct replacement for ICP model WPG3364090RKC1 — OEM Tubing Pressure Switch | Ships Today is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your ICP equipment which lists the model number WPG3364090RKC1 — OEM Tubing Pressure Switch | Ships Today.

ICP

ICP Pressure Switch for WPG3364090RKC1 — OEM Tubing Pressure Switch | Ships Today

Name: ICP Pressure Switch for WPG3364090RKC1 — OEM Tubing Pressure Switch | Ships Today
Brand: ICP
SKU: 1178417
Price: 44.20 USD
Availability: InStock

SKU: 1178417 Brand: ICP

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Overview

This OEM tubing pressure switch (P/N 1178417) is the air-proving safety control in your ICP / Heil / Tempstar WPG3364090RKC1 packaged gas-electric unit. It senses negative pressure created by the inducer motor through its sensing tube and confirms proper venting before the control board allows ignition. If the switch fails to close — or the tubing is blocked — the furnace will lock out to prevent unsafe operation. The switch operates within the 24V control circuit.

Specifications

Spec	Value
Part Number	1178417
Type	Air-Proving Pressure Switch (Tubing)
Brand	ICP (Heil / Tempstar / Comfortmaker)
Control Voltage	24V
Function	Proves inducer draft before ignition

Compatibility

Engineered for the ICP / Heil / Tempstar WPG3364090RKC1 packaged unit and related models originally equipped with tubing pressure switch 1178417. Match the pressure setpoint (in. W.C.) stamped on the body of your existing switch before ordering.

Installation Guide

Safety First — Disconnect power; verify zero voltage with a multimeter.
Access — Remove the inducer/control compartment service panel.
Document — Photograph the wire terminals and sensing-tube routing.
Remove — Pull off the electrical leads and sensing tube, then unscrew the old switch.
Install — Mount the new switch, reattach the sensing tube, and reconnect the leads per your photos.
Test — Restore power, run a heat call, and confirm the inducer starts and the switch closes to allow ignition.

Signs You Need a Replacement

Furnace locks out with a pressure-switch fault code
Inducer runs but the burners never light
Switch stuck open or stuck closed when tested
Cracked or kinked sensing tube and erratic operation

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
Refunds processed within 5-7 business days

ICP Pressure Switch for WPG33640...

$44.20

Frequently Asked Questions

Does this Pressure Switch fit my ICP WPG3364090RKC1 — OEM Tubing Pressure Switch | Ships Today?

Yes. This is the factory-specified OEM pressure switch for the ICP WPG3364090RKC1 — OEM Tubing Pressure Switch | Ships Today. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the pressure switch on my ICP WPG3364090RKC1 — OEM Tubing Pressure Switch | Ships Today?

Difficulty: Medium (20–30 min)
Step 1: Turn off power. Step 2: Locate pressure switch near draft inducer. Step 3: Note tubing orientation. Step 4: Disconnect tubing and wires. Step 5: Remove screw, install new switch. Step 6: Reconnect tubing and wires, restore power.

My furnace shows a pressure switch error. What do I replace?

Furnace LED showing pressure switch error = switch not detecting draft inducer airflow. Try first: clear the rubber tubing to the switch (often clogged with condensation). If problem persists, replace the pressure switch.

Is this pressure switch compatible with Bryant or Payne too?

Many ICP parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my ICP pressure switch?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

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