What amp contactor do I need for my ICP system?

The correct replacement for ICP model WCH3424GKC100 — 24V Coil | 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 WCH3424GKC100 — 24V Coil | 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 WCH3424GKC100 — 24V Coil | Ships Today

Name: ICP 1-Pole 30A Contactor for WCH3424GKC100 — 24V Coil | 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 definite-purpose contactor with shunt (part #1172472) fits the ICP / Heil / Tempstar heat pump model WCH3424GKC100. The contactor is the high-voltage switch that powers the compressor and outdoor fan; its 24V coil is energized by the thermostat/control board to pull the contacts closed and deliver line voltage to the condensing unit. Pitted or burned contacts and an open 24V coil are the usual failure modes, leaving the outdoor unit dead while the thermostat calls. The integrated shunt provides the line connection for single-pole switching.

Specifications

Spec	Value
Part Number	1172472
Type	Definite Purpose Contactor
Brand	ICP / Heil / Tempstar
Poles	1-Pole (with shunt)
Contact Rating	30A
Coil Voltage	24V
Application	Heat Pump / AC Compressor & Fan

Compatibility

Direct OEM replacement for ICP-family heat pumps including model WCH3424GKC100 and related Heil, Tempstar, and Comfortmaker units using contactor 1172472. Verify amp rating, pole count, and 24V coil on your existing part before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.
Access — Remove the outdoor unit control-panel service cover.
Document — Photograph all line, load, and 24V coil wiring before disconnecting.
Remove — Disconnect each wire, unscrew the contactor from its bracket, and lift it out.
Install — Mount the new contactor and reconnect every wire to the matching terminal per your photo.
Test — Restore power, call for cooling/heating, and confirm the contactor pulls in and the compressor/fan energize.

Signs You Need a Replacement

Outdoor unit won't start though the thermostat is calling
Buzzing, chattering, or no audible pull-in at the contactor
Pitted, burned, or welded contacts
24V coil reads open on a multimeter

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 WCH3424GKC100 — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WCH3424GKC100 — 24V Coil | 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 WCH3424GKC100 — 24V Coil | 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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