What amp contactor do I need for my ICP system?

The correct replacement for ICP model WJA436000KTP0A1 — 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 WJA436000KTP0A1 — 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 1-Pole 30A Contactor for WJA436000KTP0A1 — 24V Coil w/ Shunt | Ships Today

Name: ICP 1-Pole 30A Contactor for WJA436000KTP0A1 — 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 single-pole contactor is the electrical switch that powers your compressor and condenser fan motor. When the 24V coil energizes on a call for cooling, the contactor pulls in and passes line voltage to the outdoor unit; its built-in shunt provides reliable switching for the WJA436000KTP0A1 system. A failed contactor shows up as a buzzing or chattering outdoor unit, pitted or welded contacts that won't break the circuit, or an outdoor unit that won't start at all. This is OEM part 1172472 (CONTACTOR 1P 30A 24V W/SHUNT).

Specifications

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

Compatibility

A direct OEM replacement for the ICP/Tempstar/Heil WJA436000KTP0A1 condensing unit. The 1-pole, 30A, 24V-coil configuration is common across ICP-family WJA-series units — verify pole count, amp rating, and coil voltage match your existing contactor before installing.

Installation Guide

Safety First — Disconnect power at the breaker and disconnect, then verify zero voltage with a multimeter at the contactor line terminals.
Access — Remove the outdoor unit service panel to expose the contactor.
Document — Photograph every line, load, and 24V coil wire before disconnecting.
Remove — Disconnect the leads, unscrew the contactor from its mounting bracket, and lift it out.
Install — Mount the new contactor, reconnect each wire exactly per your photo, matching line/load and coil terminals.
Test — Restore power and confirm the contactor pulls in cleanly and the compressor/fan start on a cooling call.

Signs You Need a Replacement

Loud buzzing, humming, or chattering from the outdoor unit
Pitted, burned, or welded contacts that stick closed
Outdoor unit won't start even though 24V is present at the coil
Compressor and fan 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 WJA...

$42.84

Frequently Asked Questions

Does this Contactor fit my ICP WJA436000KTP0A1 — 24V Coil w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WJA436000KTP0A1 — 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 WJA436000KTP0A1 — 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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