What amp contactor do I need for my ICP system?

The correct replacement for ICP model WCH3494GKC100 — 1-Pole 30A 24V | 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 WCH3494GKC100 — 1-Pole 30A 24V | 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 Contactor for WCH3494GKC100 — 1-Pole 30A 24V | Ships Today

Name: ICP Contactor for WCH3494GKC100 — 1-Pole 30A 24V | 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, 30 amp definite-purpose contactor with shunt (part number 1172472) for the ICP / Heil / Tempstar WCH3494GKC100 heat pump. The contactor is the electrically operated switch that powers the outdoor unit: a 24-volt signal from the thermostat energizes the control coil, which pulls the 30A line contact closed and feeds line voltage to the compressor and condenser fan. The integrated shunt provides the second-pole electrical path used on single-pole designs. Contactors wear out from the constant arcing each time they open and close — when they fail, the outdoor unit hums without starting, runs continuously because the contacts have welded shut, or chatters and buzzes from a weak coil.

Specifications

Spec	Value
OEM Part Number	1172472
Type	Definite Purpose Contactor, 1-Pole w/ Shunt
Brand	ICP / Heil / Tempstar
Current Rating	30 Amps
Poles	1
Coil Voltage	24V
Fits Model	WCH3494GKC100

Compatibility

Direct OEM replacement for the WCH3494GKC100 heat pump and equivalent ICP-family units under Heil, Tempstar, Comfortmaker, and Arcoaire. Verify the 1-pole configuration, 30A contact rating, and 24V coil match your existing contactor before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker; verify zero voltage with a multimeter.
Access — Remove the condenser electrical panel.
Document — Photograph all line, load, shunt, and 24V coil connections before disconnecting.
Remove — Label and disconnect each wire, then unscrew the old contactor from its bracket.
Install — Mount the new contactor and reconnect every wire exactly per your photo.
Test — Restore power and confirm the contact pulls in on a cooling/heating call and the compressor and fan energize.

Signs You Need a Replacement

Unit hums or buzzes but won't start
Welded contacts keep the compressor running nonstop
Chattering contactor from a failing coil
Burnt, pitted, or discolored contacts and terminals

Shipping & Returns

Ships same day on orders placed 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 Contactor for WCH3494GKC100 ...

$37.70

Frequently Asked Questions

Does this Contactor fit my ICP WCH3494GKC100 — 1-Pole 30A 24V | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WCH3494GKC100 — 1-Pole 30A 24V | 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 WCH3494GKC100 — 1-Pole 30A 24V | 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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