What amp contactor do I need for my ICP system?

The correct replacement for ICP model WCH3182GKA1 — 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 WCH3182GKA1 — 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 1-Pole 30A Contactor for WCH3182GKA1 — 24V Coil w/Shunt | Ships Today

Name: ICP 1-Pole 30A Contactor for WCH3182GKA1 — 24V Coil w/Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 32.44 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This OEM 1-pole 30-amp definite purpose contactor (part 1172472) with a 24V coil and shunt is the switching relay for the ICP / Tempstar / Heil WCH3182GKA1 heat pump. The contactor receives the 24V signal from the thermostat or control board and closes its 30A power contacts to energize the compressor and condenser fan motor. The integrated shunt provides a controlled current path on the unswitched leg. Contactors are a high-wear part — every cooling or heating call cycles the contacts, and over time arcing pits and welds them. Symptoms of failure include a unit that won't start, a humming or chattering contactor, or contacts that stick closed and won't let the unit shut off.

Specifications

Spec	Value
Part Number	1172472
Type	Definite Purpose Contactor (with Shunt)
Brand	ICP / Tempstar / Heil
Poles	1 (Single-Pole)
Contact Rating	30A
Coil Voltage	24V
Fits Model	WCH3182GKA1
Fit	OEM Replacement

Compatibility

Direct OEM replacement for the ICP / Tempstar / Heil WCH3182GKA1 heat pump. The 24V coil matches standard low-voltage control circuits, and the 30A 1-pole configuration with shunt is the factory switching device for this unit's compressor and condenser fan.

Installation Guide

Safety First — Disconnect power at the disconnect and verify zero voltage with a multimeter across the line terminals.
Access — Remove the condenser control panel to expose the contactor.
Document — Photograph all line, load, and 24V coil wires before disconnecting.
Remove — Loosen the terminal screws, transfer one wire at a time, and unscrew the contactor from its mounting bracket.
Install — Mount the new contactor, reconnect each wire to the matching terminal per your photo, and torque the terminals snug.
Test — Restore power and confirm the contactor pulls in on a call and the compressor/fan energize cleanly.

Signs You Need a Replacement

Outdoor unit won't start on a cooling or heating call
Loud humming, buzzing, or chattering from the contactor
Pitted, burned, or welded contacts visible on inspection
Compressor or fan runs continuously and won't 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 1-Pole 30A Contactor for WCH...

$32.44

Frequently Asked Questions

Does this Contactor fit my ICP WCH3182GKA1 — 24V Coil w/Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WCH3182GKA1 — 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 WCH3182GKA1 — 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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