What amp contactor do I need for my ICP system?

The correct replacement for ICP model WCH3602GKA1 — 40 Amp 24V Coil | 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 WCH3602GKA1 — 40 Amp 24V Coil | 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 WCH3602GKA1 — 40 Amp 24V Coil | Ships Today

Name: ICP Contactor for WCH3602GKA1 — 40 Amp 24V Coil | Ships Today
Brand: ICP
SKU: 1176763
Price: 44.20 USD
Availability: InStock

SKU: 1176763 Brand: ICP

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Overview

This is the OEM 40 amp definite-purpose contactor (part number 1176763) for the ICP / Heil / Tempstar WCH3602GKA1 heat pump condensing unit. The contactor is an electrically operated switch: when the thermostat calls for cooling or heating, the 24-volt control coil energizes and pulls the contacts closed, sending line voltage to the compressor and condenser fan motor. Rated at 40 amps, it carries the full running and locked-rotor inrush current of the outdoor unit. A failed contactor is one of the most common reasons an outdoor unit goes dead — symptoms include a system that hums but won't start, pitted or welded contacts that keep the compressor running continuously, chattering or buzzing at the contactor, and burnt or discolored terminals.

Specifications

Spec	Value
OEM Part Number	1176763
Type	Definite Purpose Contactor
Brand	ICP / Heil / Tempstar
Current Rating	40 Amps
Coil Voltage	24V
Fits Model	WCH3602GKA1

Compatibility

Direct OEM replacement for the ICP-family WCH3602GKA1 heat pump. ICP manufactures under the Heil, Tempstar, Comfortmaker, and Arcoaire brands, so this contactor also services the equivalent units sold under those names. Always confirm the 24V coil rating and 40A contact rating match your existing part.

Installation Guide

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

Signs You Need a Replacement

Outdoor unit hums or buzzes but compressor/fan won't start
Pitted, burnt, or welded contacts (unit won't shut off)
Chattering contactor or visible arcing
Melted or discolored terminals and a burnt smell

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 WCH3602GKA1 — ...

$44.20

Frequently Asked Questions

Does this Contactor fit my ICP WCH3602GKA1 — 40 Amp 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WCH3602GKA1 — 40 Amp 24V Coil | 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 WCH3602GKA1 — 40 Amp 24V Coil | 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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