What are the specs for this Pressure Switch?

The correct replacement for ICP model WPG4484130LKA1 – With Tubing | 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 WPG4484130LKA1 – With Tubing | Ships Today.

ICP

ICP Pressure Switch for WPG4484130LKA1 – With Tubing | Ships Today

Name: ICP Pressure Switch for WPG4484130LKA1 – With Tubing | Ships Today
Brand: ICP
SKU: 1178417
Price: 38.94 USD
Availability: InStock

SKU: 1178417 Brand: ICP

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Overview

This OEM pressure switch with tubing (part number 1178417) is the draft safety control on your ICP WPG4484130LKA1 system. It senses negative pressure created by the inducer/draft motor and proves that the venting is clear before allowing the furnace to ignite. If the switch does not close, the control board will not advance to ignition — protecting against blocked flue conditions and dangerous flue gas spillage. Common failure symptoms include a furnace that runs the inducer but never lights, a unit stuck in a pressure-switch lockout, or a cracked or clogged sensing tube.

Specifications

Spec	Value
Part Number	1178417
Type	Pressure Switch with Tubing
Brand	ICP
Function	Draft / Venting Safety Proving
Application	Gas Furnace

Compatibility

Direct OEM fit for the ICP / Tempstar / Heil WPG4484130LKA1 unit. Used across ICP-family furnaces and package units that rely on the same inducer draft-proving switch.

Installation Guide

Safety First – Disconnect power and shut off the gas supply, then verify zero voltage with a multimeter.
Access – Remove the service panel to reach the switch and inducer assembly.
Document – Photograph the wiring and tubing routing before disconnecting.
Remove – Disconnect the electrical terminals and sensing tube, then unscrew the old switch.
Install – Mount the new switch, reconnect the tubing and wires, and confirm the tube has no kinks or blockages.
Test – Restore power and gas, start a heat cycle, and confirm the switch closes and the burners ignite.

Signs You Need a Replacement

Inducer runs but furnace never lights
Furnace locks out on a pressure switch fault code
Cracked, clogged, or disconnected sensing tube
Switch fails to close even with clear venting

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 WPG44841...

$38.94

Frequently Asked Questions

Does this Pressure Switch fit my ICP WPG4484130LKA1 – With Tubing | Ships Today?

Yes. This is the factory-specified OEM pressure switch for the ICP WPG4484130LKA1 – With Tubing | 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 WPG4484130LKA1 – With Tubing | 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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