What amp contactor do I need for my ICP system?

The correct replacement for ICP model WJA342000KTP0B1 — 30A 24V 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 WJA342000KTP0B1 — 30A 24V 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 Contactor for WJA342000KTP0B1 — 30A 24V with Shunt | Ships Today

Name: ICP 1-Pole Contactor for WJA342000KTP0B1 — 30A 24V with Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 37.70 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This is the OEM single-pole contactor for the ICP / Tempstar / Heil WJA342000KTP0B1, OEM part number 1172472 (CONTACTOR 1P 30A 24V W/SHUNT). The contactor is the electrically-operated switch that delivers high-voltage line power to the compressor and condenser fan motor when the 24V control circuit calls for cooling. This version is rated for 30 amps with a 24V coil and includes an integrated shunt. Over thousands of switching cycles the contacts pit and arc and the coil can burn open — a failed contactor leaves the outdoor unit silent on a cooling call, or causes chatter, welded contacts, or continuous running.

Specifications

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

Compatibility

Direct OEM replacement for the ICP / Tempstar / Heil model WJA342000KTP0B1. This 1-pole 30A 24V-coil contactor with shunt is a common service part across ICP-family condensing units and heat pumps of similar tonnage. Verify pole count, amp rating, coil voltage, and the shunt feature against your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter at the contactor terminals.
Access — Remove the outdoor unit's electrical access panel.
Document — Photograph all line, load, shunt, and 24V coil wires before removing them.
Remove — Transfer wires one at a time, or label each lead, then unscrew the old contactor from its mounting bracket.
Install — Mount the new contactor, land line and load conductors on the correct poles, reconnect the shunt, and reconnect the 24V coil leads per your photo.
Test — Restore power and confirm the contactor pulls in cleanly on a cooling call with no chatter.

Signs You Need a Replacement

Outdoor unit does not start on a cooling call but 24V is present at the coil.
Loud chattering or buzzing from the contactor.
Pitted, burned, or welded contacts that keep the compressor running.
Open or burned coil reading infinite resistance.

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 WJA3420...

$37.70

Frequently Asked Questions

Does this Contactor fit my ICP WJA342000KTP0B1 — 30A 24V with Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WJA342000KTP0B1 — 30A 24V 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 WJA342000KTP0B1 — 30A 24V 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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