What amp contactor do I need for my ICP system?

The correct replacement for ICP model WCA3484GKN100 — 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 WCA3484GKN100 — 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 WCA3484GKN100 — 1-Pole 30A 24V w/ Shunt | Ships Today

Name: ICP Contactor for WCA3484GKN100 — 1-Pole 30A 24V w/ Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 32.44 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This genuine OEM 1-pole, 30-amp contactor with shunt (OEM part number 1172472) is built for the ICP/Tempstar/Heil WCA3484GKN100 air conditioning condensing unit. The contactor acts as the high-current relay that delivers line voltage to the compressor and condenser fan motor on every call for cooling. A 24-volt coil pulls the single power contact closed, and the integrated shunt carries the unswitched leg of the load. Each cooling season the contacts arc and erode, which produces buzzing, intermittent operation, and voltage drop that can overheat the compressor windings. A new contactor re-establishes a solid, low-resistance connection and keeps the system starting cleanly.

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

A direct-fit replacement for the ICP/Tempstar/Heil WCA3484GKN100 condensing unit and other WCA-series equipment specifying the 1172472 single-pole shunt contactor. Verify the 30A rating, 1-pole configuration, and 24V coil match your old part before installing.

Installation Guide

Safety First — Turn off the disconnect and breaker, then confirm zero voltage with a multimeter.
Access — Remove the condensing unit service panel.
Document — Photograph every wire, including the shunt leg, before disconnecting.
Remove — Mark and disconnect the line, load, and coil wires, then unscrew and remove the old contactor.
Install — Mount the replacement and transfer each wire to the matching terminal using your photo.
Test — Restore power, call for cooling, and verify the contacts close and the unit runs.

Signs You Need a Replacement

Buzzing or chattering from the condenser when the system starts.
Burned, pitted, or welded contacts.
Unit hums but the compressor and fan do not engage.
Stuck contacts that keep the unit running after the call ends.

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 WCA3484GKN100 ...

$32.44

Frequently Asked Questions

Does this Contactor fit my ICP WCA3484GKN100 — 1-Pole 30A 24V w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WCA3484GKN100 — 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 WCA3484GKN100 — 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.

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