What amp contactor do I need for my ICP system?

The correct replacement for ICP model WJA424000KTP0A1 – 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 WJA424000KTP0A1 – 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 1-Pole 30A Contactor for WJA424000KTP0A1 – 24V w/Shunt | Ships Today

Name: ICP 1-Pole 30A Contactor for WJA424000KTP0A1 – 24V w/Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 41.60 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This is a genuine OEM single-pole definite purpose contactor (OEM part number 1172472) for the ICP WJA424000KTP0A1 condensing unit. The contactor is the electromechanical switch that energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. A 24-volt control signal pulls in the coil, closing the 30-amp line-voltage contacts and routing power to the outdoor unit. This version includes an integral shunt for proper circuit interruption. Pitted, welded, or chattering contacts are one of the most common causes of an outdoor unit that hums but won't start, trips the breaker, or short-cycles. Specs: 1 pole, 30 amp resistive rating, 24V coil, with shunt.

Specifications

Spec	Value
Part Number	1172472
Type	Definite Purpose Contactor, 1-Pole, with Shunt
Brand	ICP (Tempstar / Heil / Comfortmaker)
Contact Rating	30 Amps
Coil Voltage	24 VAC
Poles	1
Fitment	OEM

Compatibility

Direct-fit replacement for the ICP/Tempstar/Heil model WJA424000KTP0A1 air conditioning system. This 1-pole 30A 24V contactor is also used across many comparable ICP-family condensing units that specify part 1172472. Always confirm the part number on your existing contactor before ordering.

Installation Guide

Safety First – Disconnect power at the outdoor disconnect and the breaker, then verify zero voltage with a multimeter across the line terminals.
Access – Remove the condensing unit service panel to expose the control compartment.
Document – Photograph all wire connections to the line, load, and coil terminals before disconnecting.
Remove – Label and disconnect each wire, then unscrew the old contactor from the mounting bracket.
Install – Mount the new contactor and reconnect every wire exactly per your photo, confirming the 24V coil leads land on the coil terminals.
Test – Restore power, call for cooling, and verify the contacts pull in cleanly and the compressor and fan start.

Signs You Need a Replacement

Outdoor unit hums or buzzes but the compressor and fan won't start.
Visibly pitted, burned, or welded contacts.
Chattering or rapid clicking when the thermostat calls for cooling.
Intermittent cooling or short-cycling of the condenser.

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 WJA...

$41.60

Frequently Asked Questions

Does this Contactor fit my ICP WJA424000KTP0A1 – 24V w/Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WJA424000KTP0A1 – 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 WJA424000KTP0A1 – 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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