What amp contactor do I need for my ICP system?

The correct replacement for ICP model WCA3422GKA1 — 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 WCA3422GKA1 — 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 WCA3422GKA1 — 24V Coil w/ Shunt | Ships Today

Name: ICP 1-Pole 30A Contactor for WCA3422GKA1 — 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 definite-purpose contactor (part number 1172472) is the high-voltage switch that powers the compressor and condenser fan motor in your ICP WCA3422GKA1 condensing unit. Rated at 30 amps with a 24-volt control coil and a built-in shunt, it closes the line circuit on every thermostat cooling call. Contactors are a high-wear part: arcing slowly pits the contacts, the coil can open or short, and stuck contacts can run the compressor without stopping. Swapping in a fresh 1172472 restores positive switching, eliminates chatter, and protects the compressor from damaging low-voltage starts.

Specifications

Spec	Value
Part Number	1172472
Type	Single-Pole (1P) Definite Purpose Contactor w/ Shunt
Brand	ICP / Tempstar / Heil
Current Rating	30 Amps
Coil Voltage	24 VAC
Poles	1
Fit	OEM Replacement

Compatibility

Direct OEM replacement for the ICP/Tempstar/Heil WCA3422GKA1 condensing unit. The 1172472 is shared across numerous ICP-family split-system air conditioners and heat pumps specifying a 1-pole 30A 24V contactor — verify against your existing contactor before ordering.

Installation Guide

Safety First — Kill power at the disconnect and breaker, then verify zero voltage at the contactor with a multimeter.
Access — Remove the outdoor unit's electrical service panel.
Document — Photograph every line, load, and 24V coil connection before you start.
Remove — Label and disconnect all leads, then unbolt the old contactor from its bracket.
Install — Mount the new 1172472 contactor and reconnect each wire per your photo.
Test — Restore power, call for cooling, and confirm clean pull-in with the compressor and fan running.

Signs You Need a Replacement

Buzzing or chattering from the condenser when cooling engages.
Visibly burned or pitted contact points.
No compressor start despite a valid 24V call from the thermostat.
Outdoor unit won't shut off due to welded 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 for WCA...

$42.84

Frequently Asked Questions

Does this Contactor fit my ICP WCA3422GKA1 — 24V Coil w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WCA3422GKA1 — 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 WCA3422GKA1 — 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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