What are the specs for this Pressure Switch?

The correct replacement for ICP model WPG4364090RKA1 — OEM Replacement | 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 WPG4364090RKA1 — OEM Replacement | Ships Today.

ICP

ICP Pressure Switch Tubing for WPG4364090RKA1 — OEM Replacement | Ships Today

Name: ICP Pressure Switch Tubing for WPG4364090RKA1 — OEM Replacement | Ships Today
Brand: ICP
SKU: WPG4364090RKA1
Price: 36.34 USD
Availability: InStock

SKU: WPG4364090RKA1 Brand: ICP

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Overview

This is the OEM pressure switch tubing (part number 1178417) for the ICP / Tempstar / Heil WPG4364090RKA1 packaged unit. This flexible tubing connects the pressure switch to the inducer housing and draft port, allowing the switch to sense the negative pressure created by the inducer motor before the control board permits ignition. Over time this tubing cracks, hardens, clogs with condensate, or pops off its barb — any of which causes a false pressure-switch reading and a no-heat / lockout condition. Replacing brittle or compromised tubing with the correct OEM hose restores accurate pressure sensing and reliable ignition sequencing.

Specifications

Spec	Value
OEM Part Number	1178417
Type	Pressure Switch Tubing
Brand	ICP
Function	Pressure switch to inducer sensing line
Application	Furnace / Packaged Unit

Compatibility

Designed as the factory sensing tubing for the ICP WPG4364090RKA1 and equivalent Tempstar, Heil, and Comfortmaker packaged units built on this platform. Match the routing and length to your existing hose before installing.

Installation Guide

Safety First — Disconnect power at the unit and breaker, then verify zero voltage with a multimeter.
Access — Remove the service / blower panel to reach the pressure switch and inducer assembly.
Document — Photograph the tubing routing and every barb connection before removing the old hose.
Remove — Pull the cracked tubing from the pressure switch port and the inducer/draft fitting, clearing any condensate from the ports.
Install — Route the new tubing along the same path and press it firmly onto both barbs with no kinks or low spots that could trap water.
Test — Restore power, start a heat call, and confirm the pressure switch closes and the burners ignite normally.

Signs You Need a Replacement

No-heat lockout with a pressure-switch fault code
Visibly cracked, hardened, kinked, or collapsed tubing
Condensate trapped inside the hose causing intermittent operation
Tubing that repeatedly slips off its barb fitting

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 Tubing for W...

$36.34

Frequently Asked Questions

Does this Pressure Switch fit my ICP WPG4364090RKA1 — OEM Replacement | Ships Today?

Yes. This is the factory-specified OEM pressure switch for the ICP WPG4364090RKA1 — OEM Replacement | 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 WPG4364090RKA1 — OEM Replacement | 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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