What amp contactor do I need for my ICP system?

The correct replacement for ICP model WJA342000KTP0A1 — Definite Purpose | 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 WJA342000KTP0A1 — Definite Purpose | 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 with Shunt 24V Coil for WJA342000KTP0A1 — Definite Purpose | Ships Today

Name: ICP 1-Pole 30A Contactor with Shunt 24V Coil for WJA342000KTP0A1 — Definite Purpose | Ships Today
Brand: ICP
SKU: 1172472
Price: 42.90 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This genuine OEM 1-pole 30-amp definite-purpose contactor (OEM part #1172472) with a 24V coil and integrated shunt is the switching relay for the ICP / Tempstar / Heil WJA342000KTP0A1. When the thermostat calls for cooling, the 24V control signal energizes the coil and pulls the contacts closed, sending line voltage to the compressor and condenser fan motor. The built-in shunt maintains a controlled path on the unswitched leg. Contactors are high-wear components: the contacts arc each time they open and close, eventually pitting, burning, or welding shut. Pitted contacts cause hard starting and chatter; welded contacts keep the compressor running after the thermostat is satisfied. A failed coil prevents the contactor from pulling in at all.

Specifications

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

Compatibility

Designed for the ICP / Tempstar / Heil WJA342000KTP0A1 and compatible condensing units using a 1-pole 24V-coil contactor. Verify pole count, contact amperage, and coil voltage against your original before installing.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, and verify zero voltage with a multimeter.
Access — Remove the condensing unit service panel.
Document — Photograph every line, load, and 24V coil wire before disconnecting.
Remove — Transfer the wires one at a time, or disconnect all leads and unscrew the old contactor from the bracket.
Install — Mount the new contactor and reconnect each wire exactly per your photo, including the shunt and coil leads.
Test — Restore power, call for cooling, and confirm the contacts pull in cleanly and the compressor and fan start.

Signs You Need a Replacement

Audible chatter or buzzing from the contactor
Compressor keeps running after the thermostat is satisfied (welded contacts)
Unit will not start on a cooling call (open/failed coil)
Visible pitting, burning, or melted housing on the contacts

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 with Sh...

$42.90

Frequently Asked Questions

Does this Contactor fit my ICP WJA342000KTP0A1 — Definite Purpose | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WJA342000KTP0A1 — Definite Purpose | 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 WJA342000KTP0A1 — Definite Purpose | 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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