What amp contactor do I need for my ICP system?

The correct replacement for ICP model WCH3422GKA1 — 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 WCH3422GKA1 — 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 WCH3422GKA1 — 24V Coil w/ Shunt | Ships Today

Name: ICP 1-Pole 30A Contactor for WCH3422GKA1 — 24V Coil w/ Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 31.20 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This OEM single-pole, 30-amp definite purpose contactor (part 1172472) with a 24V control coil and built-in shunt is the switching relay for your ICP / Heil / Tempstar / Comfortmaker WCH3422GKA1 heat pump. When the thermostat calls for cooling or heating, 24 volts energize the contactor coil, pulling the contacts closed to send line voltage to the compressor and condenser fan motor. Contactors are one of the most common failure points in any outdoor unit — the contacts pit, arc, and weld over thousands of cycles, while ants and debris can jam the plunger. A failed contactor leaves the compressor and fan dead even though the thermostat is calling. The integrated shunt provides the OEM-correct circuit path for this model.

Specifications

Spec	Value
OEM Part Number	1172472
Type	Single-Pole (1-Pole) Definite Purpose Contactor
Brand	ICP (Heil / Tempstar / Comfortmaker)
Contact Rating	30 Amp
Coil Voltage	24 VAC
Features	Built-in Shunt
Fitment	OEM Direct Replacement

Compatibility

Direct OEM replacement for the WCH3422GKA1 heat pump and other ICP-family condensing units specifying a 1-pole 30A / 24V contactor with shunt. Verify pole count, amp rating, and coil voltage against the failed unit before installing.

Installation Guide

Safety First — Shut off the disconnect and breaker; verify zero voltage across the line terminals with a multimeter.
Access — Remove the condenser control-panel cover.
Document — Photograph every wire and terminal position before touching anything.
Remove — Label and disconnect the wires, then unscrew the old contactor from its bracket.
Install — Mount the new contactor and transfer each wire to the matching terminal per your photo.
Test — Restore power and call for cooling; confirm the contactor pulls in and the compressor and fan start.

Signs You Need a Replacement

Outdoor unit is silent on a cooling/heating call (no hum, no fan).
Buzzing or chattering from the contactor.
Pitted, burnt, or welded contacts visible on inspection.
Compressor runs continuously because contacts won't release.

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day returns on unused parts. 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 WCH...

$31.20

Frequently Asked Questions

Does this Contactor fit my ICP WCH3422GKA1 — 24V Coil w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WCH3422GKA1 — 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 WCH3422GKA1 — 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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