What amp contactor do I need for my ICP system?

The correct replacement for ICP model WCA3484GKG100 — 1-Pole 30A 24V 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 WCA3484GKG100 — 1-Pole 30A 24V 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 Contactor for WCA3484GKG100 — 1-Pole 30A 24V w/ Shunt | Ships Today

Name: ICP Contactor for WCA3484GKG100 — 1-Pole 30A 24V w/ Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 32.44 USD
Availability: InStock

SKU: 1172472 Brand: ICP

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This is a genuine OEM 1-pole, 30-amp contactor with shunt (OEM part number 1172472) for the ICP/Tempstar/Heil WCA3484GKG100 air conditioning condensing unit. The contactor is the electrically operated switch that routes line voltage to the compressor and condenser fan motor whenever the thermostat calls for cooling. A 24-volt control coil closes the single set of power contacts, while the built-in shunt maintains the unswitched leg of the circuit. After thousands of switching cycles the silver contacts pit and burn from arcing, creating chatter, hard starts, and voltage drop that strains the compressor. Replacing the contactor restores a clean electrical path and reliable cooling operation.

Specifications

Spec	Value
OEM Part Number	1172472
Type	Definite Purpose Contactor with Shunt
Brand	ICP / Tempstar / Heil
Poles	1-Pole
Resistive Rating	30 Amps
Coil Voltage	24 VAC
Application	AC Compressor & Condenser Fan

Compatibility

Designed as a direct-fit replacement for the ICP/Tempstar/Heil WCA3484GKG100 condensing unit and other WCA-series systems that call for the 1172472 single-pole shunt contactor. Confirm the 30A rating, 1-pole layout, and 24V coil match your current part before installing.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the condensing unit service panel.
Document — Photograph all wires, including the shunt leg, before disconnecting.
Remove — Label and disconnect the line, load, and 24V coil wires, then unscrew and lift out the old contactor.
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 contacts pull in and the unit starts.

Signs You Need a Replacement

Humming or chattering at the condenser when cooling begins.
Pitted, burned, or welded contact points.
Compressor and fan fail to start despite a cooling call.
Contacts stick closed and the unit will not shut off.

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 WCA3484GKG100 ...

$32.44

Frequently Asked Questions

Does this Contactor fit my ICP WCA3484GKG100 — 1-Pole 30A 24V w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WCA3484GKG100 — 1-Pole 30A 24V 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 WCA3484GKG100 — 1-Pole 30A 24V 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.

Menu