What amp contactor do I need for my ICP system?

The correct replacement for ICP model WCH3422GKR4 — 30A 24V Coil | 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 WCH3422GKR4 — 30A 24V Coil | Ships Today.

My AC clicks but the compressor does not turn on. What is wrong?

Clicking from the outdoor unit without the compressor starting usually means a worn contactor. The contactor is the relay that sends power to the compressor. When its contacts are pitted or worn, it clicks but cannot establish a solid electrical connection. Other symptoms: visible pitting or burn marks on the contactor face, AC works intermittently, or buzzing from the contactor.

ICP

ICP 1-Pole Contactor for WCH3422GKR4 — 30A 24V Coil | Ships Today

Name: ICP 1-Pole Contactor for WCH3422GKR4 — 30A 24V Coil | Ships Today
Brand: ICP
SKU: 1172472
Price: 32.44 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This OEM single-pole contactor (part number 1172472) is the primary switching relay for the ICP WCH3422GKR4 heat pump/condensing unit. Rated at 30 amps with a 24-volt control coil and an integrated shunt, the contactor energizes the compressor and outdoor fan motor each time the thermostat calls for cooling. When the 24V coil receives power, the electromagnet pulls the contacts closed and sends line voltage to the outdoor equipment. Over thousands of cycles the silver-alloy contacts pit, burn, and weld, while the coil can open or short. A failing contactor is one of the most common causes of an outdoor unit that hums but won't start, chatters, or runs continuously even after the thermostat is satisfied. Replacing it restores clean, reliable switching and protects the more expensive compressor from low-voltage damage.

Specifications

Spec	Value
Part Number	1172472
Type	Definite Purpose Contactor, 1-Pole
Brand	ICP (Tempstar / Heil)
Contact Rating	30 Amps
Coil Voltage	24V
Poles	1
Features	Integrated shunt
Fit	OEM Replacement

Compatibility

Engineered as a direct OEM fit for the ICP WCH3422GKR4 outdoor unit and the matching Tempstar, Heil, and Comfortmaker variants built on the same chassis. Always confirm the existing contactor is a 1-pole, 30A, 24V coil unit before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter across the line terminals.
Access — Remove the electrical access panel on the condensing unit.
Document — Photograph every wire and terminal position before disconnecting anything.
Remove — Note line, load, and 24V coil leads, transfer one wire at a time, then unbolt the old contactor from the mounting bracket.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly and the compressor and fan start.

Signs You Need a Replacement

Outdoor unit hums or buzzes but the compressor and fan won't start.
Visible pitting, burning, or melted plastic on the contacts.
Chattering or rapid clicking when the thermostat calls for cooling.
Unit runs continuously and won't shut off because the contacts have welded closed.

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 1-Pole Contactor for WCH3422...

$32.44

Frequently Asked Questions

Does this Contactor fit my ICP WCH3422GKR4 — 30A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WCH3422GKR4 — 30A 24V Coil | 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 contactor on my ICP WCH3422GKR4 — 30A 24V Coil | Ships Today?

Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Open condensing unit panel. Step 3: Photograph ALL wiring on the contactor. Step 4: Label each wire with tape. Step 5: Disconnect wires and remove old contactor. Step 6: Mount new contactor, reconnect wires matching your photo. Step 7: Restore power and test.

My AC clicks but the compressor won’t turn on. What’s wrong?

Clicking from the outdoor unit without the compressor starting = worn contactor. The contactor sends power to the compressor. When its contacts are pitted, it clicks but can’t make solid contact. Look for: visible pitting/burn marks on the contactor face, intermittent operation, or buzzing.

Is this contactor 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 contactor?

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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