What amp contactor do I need for my ICP system?

The correct replacement for ICP model WJA342000K000A2 — 1-Pole 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 WJA342000K000A2 — 1-Pole 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 Contactor for WJA342000K000A2 — 1-Pole 30A 24V Coil w/ Shunt | Ships Today

Name: ICP Contactor for WJA342000K000A2 — 1-Pole 30A 24V Coil w/ Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 42.84 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This OEM 1-pole definite purpose contactor (part number 1172472) is the primary switching relay for the outdoor condensing unit on your ICP WJA342000K000A2 system. Rated for 30 amps with a 24-volt control coil and an integrated shunt, it energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. When the 24V coil is energized, the magnetic field pulls the contacts closed, completing the high-voltage line circuit to the compressor. A failed contactor is one of the most common reasons an air conditioner stops cooling. Typical failure symptoms include a humming or buzzing outdoor unit that will not start, pitted or welded contacts that keep the compressor running continuously, chattering, or no response at all when the thermostat calls for cool. Because the contacts arc every cycle, this is a wear part that should be replaced at the first sign of pitting.

Specifications

Spec	Value
OEM Part Number	1172472
Type	1-Pole Definite Purpose Contactor w/ Shunt
Brand	ICP / Tempstar / Heil
Contact Rating	30 Amps
Coil Voltage	24 VAC
Poles	1
Fits Model	WJA342000K000A2

Compatibility

This contactor is a direct OEM replacement for the ICP WJA342000K000A2 condensing unit and shares the same platform across many Tempstar, Heil, and Comfortmaker units of the same tonnage. Always confirm the existing part number (1172472) and coil voltage before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter across the line terminals.
Access — Remove the service panel on the condensing unit to expose the control compartment.
Document — Photograph all line and 24V coil wires before disconnecting anything.
Remove — Note the L1/L2/T1/T2 and coil terminal positions, disconnect the wires, and unscrew the old contactor from the bracket.
Install — Mount the new contactor, transfer each wire to the matching terminal per your photo, and confirm coil wires land on the 24V terminals.
Test — Restore power, call for cooling, and verify the contacts pull in and the compressor and fan start.

Signs You Need a Replacement

Outdoor unit hums or buzzes but the compressor will not start.
Visibly pitted, burned, or welded contacts.
Compressor runs nonstop even when the thermostat is satisfied.
Chattering or clicking from the contactor during a cooling 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 Contactor for WJA342000K000A...

$42.84

Frequently Asked Questions

Does this Contactor fit my ICP WJA342000K000A2 — 1-Pole 30A 24V Coil w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WJA342000K000A2 — 1-Pole 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 WJA342000K000A2 — 1-Pole 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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