What amp contactor do I need for my ICP system?

The correct replacement for ICP model WCA3484GKC100 — 30A 24V Coil w/ Shunt | 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 WCA3484GKC100 — 30A 24V Coil w/ Shunt | 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 Single-Pole Contactor for WCA3484GKC100 — 30A 24V Coil w/ Shunt | Ships Today

Name: ICP Single-Pole Contactor for WCA3484GKC100 — 30A 24V Coil w/ Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 42.84 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This OEM single-pole definite purpose contactor (part number 1172472) is the electrically controlled switch that powers the compressor and condenser fan on your ICP/Heil/Tempstar WCA3484GKC100 air conditioning unit. When the thermostat calls for cooling, the 24V control circuit energizes the contactor coil, pulling the contacts closed to deliver line voltage to the compressor and outdoor fan motor. This contactor is rated for 30 amps, uses a 24-volt coil, and includes a shunt for reliable load handling. A failed contactor is one of the most common reasons an outdoor unit won't start: pitted or welded contacts, a burned-out coil, or chattering all point to replacement. Symptoms include a humming outdoor unit that never starts, intermittent cooling, or a unit that runs continuously because the contacts have welded shut.

Specifications

Spec	Value
Part Number	1172472
Type	Single-Pole (1P) Definite Purpose Contactor
Brand	ICP / Heil / Tempstar
Contact Rating	30 Amps
Coil Voltage	24V
Features	With Shunt
Fits Model	WCA3484GKC100

Compatibility

Directly fits the ICP/Tempstar/Heil WCA3484GKC100 condensing unit. As a genuine OEM replacement, part 1172472 also services many related ICP-family WCA-series air conditioners that use a 1-pole 30A 24V contactor. Always verify your existing contactor's pole count, amp rating, and coil voltage against the failed unit before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and the breaker. Verify zero voltage across the contactor terminals with a multimeter before touching any wiring.
Access — Remove the condenser service/electrical panel to expose the contactor.
Document — Take a clear photo of every wire and terminal position before disconnecting anything.
Remove — Label and disconnect the line, load, and 24V coil wires, then unscrew the old contactor from its mounting bracket.
Install — Mount the new 1172472 contactor and reconnect each wire to the matching terminal per your photo.
Test — Restore power and call for cooling; confirm the contacts pull in cleanly and the compressor and fan start.

Signs You Need a Replacement

Outdoor unit hums but the compressor and fan won't start
Visible pitting, burning, or melted plastic on the contactor
Contacts chatter or buzz instead of pulling in cleanly
Unit runs nonstop because the contacts have welded shut

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 Single-Pole Contactor for WC...

$42.84

Frequently Asked Questions

Does this Contactor fit my ICP WCA3484GKC100 — 30A 24V Coil w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WCA3484GKC100 — 30A 24V Coil w/ Shunt | 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 WCA3484GKC100 — 30A 24V Coil w/ Shunt | 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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