What amp contactor do I need for my ICP system?

The correct replacement for ICP model WCA4424GKA100 — 1-Pole 30A 24V | 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 WCA4424GKA100 — 1-Pole 30A 24V | 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 Contactor for WCA4424GKA100 — 1-Pole 30A 24V | Ships Today

Name: ICP Contactor for WCA4424GKA100 — 1-Pole 30A 24V | Ships Today
Brand: ICP
SKU: 1172472
Price: 42.84 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This genuine OEM single-pole contactor (part number 1172472) is the 30-amp, 24-volt-coil switching relay with shunt for the ICP WCA4424GKA100 condensing unit. The contactor is the electrically operated switch that energizes the compressor and condenser fan circuit whenever the thermostat calls for cooling. Constant arcing eventually pits, corrodes, or welds the contact points, and the low-voltage coil can fail open. When that happens the outdoor unit goes silent even though the indoor blower runs, or the contactor buzzes and cycles erratically. The built-in shunt provides the auxiliary connection these ICP units require.

Specifications

Spec	Value
Part Number	1172472
Type	Definite-Purpose Contactor (with shunt)
Brand	ICP
Poles	1-Pole
Contact Rating	30 Amps
Coil Voltage	24V
Fits Model	WCA4424GKA100

Compatibility

Factory-spec replacement for the ICP / Tempstar / Heil WCA4424GKA100 condensing unit. Confirm pole count, contact amperage, and 24V coil rating against your existing contactor before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.
Access — Remove the unit's electrical service panel.
Document — Photograph every line, load, and 24V coil wire before disconnecting.
Remove — Transfer one wire at a time, or unbolt the old contactor and label leads as you go.
Install — Mount the new contactor and reconnect each wire exactly per your photo.
Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly without chatter.

Signs You Need a Replacement

Outdoor unit is dead while the indoor blower still runs.
Loud buzzing, humming, or chattering at the contactor.
Visibly pitted, burned, or welded contacts.
Intermittent cooling caused by sticking or chattering contacts.

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 Contactor for WCA4424GKA100 ...

$42.84

Frequently Asked Questions

Does this Contactor fit my ICP WCA4424GKA100 — 1-Pole 30A 24V | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WCA4424GKA100 — 1-Pole 30A 24V | 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 WCA4424GKA100 — 1-Pole 30A 24V | 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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