What amp contactor do I need for my ICP system?

The correct replacement for ICP model WCH5424GKA100 — 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 WCH5424GKA100 — 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 1-Pole Contactor for WCH5424GKA100 — 30A 24V Coil w/ Shunt | Ships Today

Name: ICP 1-Pole Contactor for WCH5424GKA100 — 30A 24V Coil w/ Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 36.34 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This is the OEM definite-purpose contactor (part number 1172472, "CONTACTOR 1P 30A 24V W/SHUNT") for the ICP / Heil / Tempstar WCH5424GKA100 heat pump. The contactor is the high-current switch that powers the compressor and condenser fan motor. When the thermostat calls, the 24V coil pulls the contacts closed and sends line voltage to the outdoor unit; when the call ends, the contacts open. This is a 1-pole, 30 amp contactor with a 24V coil and an integrated shunt. Because the contacts arc every cycle, they pit and weld over time — making the contactor one of the most common wear-out parts in any outdoor unit.

Specifications

Spec	Value
Part Number	1172472
Type	Definite-Purpose Contactor
Brand	ICP / Heil / Tempstar
Poles	1-Pole
Contact Rating	30 Amps
Coil Voltage	24V
Features	Integrated shunt
Fitment	OEM replacement

Compatibility

Direct OEM replacement for the ICP/Heil/Tempstar WCH5424GKA100 condensing unit and compatible ICP-family units using a 1-pole 30A, 24V-coil contactor. Verify pole count, amp rating, coil voltage, and terminal layout against your existing contactor before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.
Access — Remove the control panel cover on the condensing unit.
Document — Photograph all line-voltage and 24V coil connections before disconnecting.
Remove — Label and disconnect each wire, then unscrew the old contactor from its mounting base.
Install — Mount the new contactor and reconnect every wire to the matching terminals per your photos.
Test — Restore power and confirm the contactor pulls in on a cooling/heating call and the compressor and fan energize.

Signs You Need a Replacement

Outdoor unit won't start or randomly fails to energize
Buzzing, chattering, or humming from the contactor
Pitted, burned, or welded contacts that stick closed
Compressor and fan run continuously even with no call

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 Contactor for WCH5424...

$36.34

Frequently Asked Questions

Does this Contactor fit my ICP WCH5424GKA100 — 30A 24V Coil w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WCH5424GKA100 — 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 WCH5424GKA100 — 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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