What amp contactor do I need for my ICP system?

The correct replacement for ICP model WCH5604GKA200 — Heat Pump | 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 WCH5604GKA200 — Heat Pump | 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 40A Contactor for WCH5604GKA200 — Heat Pump | Ships Today

Name: ICP 40A Contactor for WCH5604GKA200 — Heat Pump | Ships Today
Brand: ICP
SKU: 1176763
Price: 42.84 USD
Availability: InStock

SKU: 1176763 Brand: ICP

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Overview

This is the genuine OEM 40-amp definite-purpose contactor (part number 1176763) for the ICP/Heil/Tempstar WCH5604GKA200 heat pump condenser. The contactor is the high-current switch that energizes the compressor and condenser fan motor whenever the 24V control circuit calls. Rated at 40 amps, its contacts carry the full running load of the outdoor unit. Contactors are a common wear item: the contacts pit and arc over thousands of cycles, leading to chattering, welded-closed contacts that never let the unit shut off, or open contacts that prevent the condenser from starting at all.

Specifications

Spec	Value
Part Number	1176763
Type	Definite-purpose contactor
Brand	ICP / Heil / Tempstar
Contact Rating	40 A
Coil Voltage	24V
Application	Heat pump compressor / condenser fan
Fitment	OEM replacement

Compatibility

Factory-correct replacement for the ICP WCH5604GKA200 heat pump and equivalent Heil, Tempstar, and Comfortmaker outdoor units. Verify the amp rating and coil voltage of your existing contactor before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.
Access — Remove the condenser service panel.
Document — Photograph all line, load, and coil wiring before disconnecting.
Remove — Unscrew the old contactor from its bracket and transfer leads one at a time.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test — Restore power and confirm the contactor pulls in and the compressor and fan start on a call.

Signs You Need a Replacement

Loud chattering or buzzing at the contactor
Condenser will not start despite a cooling call
Unit runs continuously and won't shut off (welded contacts)
Pitted, burned, or melted contact surfaces

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 40A Contactor for WCH5604GKA...

$42.84

Frequently Asked Questions

Does this Contactor fit my ICP WCH5604GKA200 — Heat Pump | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WCH5604GKA200 — Heat Pump | 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 WCH5604GKA200 — Heat Pump | 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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