What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPA4304000RKA1 — 24V Coil with 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 WPA4304000RKA1 — 24V Coil with 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 WPA4304000RKA1 — 24V Coil with Shunt | Ships Today

Name: ICP 1-Pole 30A Contactor for WPA4304000RKA1 — 24V Coil with Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 32.44 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This is the genuine OEM single-pole definite-purpose contactor (part number 1172472) for the ICP WPA4304000RKA1 condensing unit. Rated for 30 amps with a 24-volt control coil and an integrated shunt, the contactor is the electrical switch that energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. When the 24V coil receives a signal, the electromagnet pulls the contacts closed and sends line voltage to the outdoor unit. A failed contactor is one of the most common no-cooling service calls: pitted or welded contacts, a burned-out coil, or chattering caused by low control voltage will leave the system unable to start or stop reliably. Replacing it restores clean, positive switching and protects the compressor from damaging voltage drops.

Specifications

Spec	Value
Part Number	1172472
Type	Definite Purpose Contactor
Brand	ICP (Heil / Tempstar / Comfortmaker)
Poles	1 (Single Pole)
Resistive Rating	30 Amps
Coil Voltage	24V
Feature	Integrated Shunt
Fitment	OEM Replacement

Compatibility

Engineered as a direct OEM replacement for the ICP WPA4304000RKA1 air conditioner. ICP builds equipment for the Heil, Tempstar, and Comfortmaker brands, so this 1-pole 30A 24V contactor commonly services matching condensing units across that family. Always confirm the printed part number on your existing contactor before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage at the contactor terminals with a multimeter.
Access — Remove the condenser service panel to expose the control compartment.
Document — Photograph all line, load, and 24V coil wiring before disconnecting anything.
Remove — Label and disconnect the wires, then unscrew the old contactor from the mounting bracket.
Install — Mount the new contactor, transfer the wires exactly per your photo, confirming line in and load out plus the two 24V coil leads.
Test — Restore power and trigger a cooling call; confirm the contacts pull in cleanly and the compressor and fan start.

Signs You Need a Replacement

Outdoor unit will not start even though the thermostat is calling for cooling
Loud buzzing, humming, or chattering from the contactor
Visibly pitted, blackened, or welded contacts
Compressor and fan that run 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 WPA...

$32.44

Frequently Asked Questions

Does this Contactor fit my ICP WPA4304000RKA1 — 24V Coil with Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPA4304000RKA1 — 24V Coil with 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 WPA4304000RKA1 — 24V Coil with 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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