What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPG3604090RKC1 — 40A 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 WPG3604090RKC1 — 40A 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 1-Pole Contactor for WPG3604090RKC1 — 40A 24V Coil | Ships Today

Name: ICP 1-Pole Contactor for WPG3604090RKC1 — 40A 24V Coil | Ships Today
Brand: ICP
SKU: 1173690
Price: 41.60 USD
Availability: InStock

SKU: 1173690 Brand: ICP

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Overview

This genuine OEM single-pole contactor (part #1173690) for the ICP WPG3604090RKC1 is the electrical switch that energizes the compressor and condenser fan when the thermostat calls for cooling. Rated at 40 amps with a 24-volt control coil, it closes the line-voltage contacts whenever the low-voltage coil is energized. Contactors are high-cycle wear items: their silver contacts pit and burn over thousands of switching events, and the coil can fail open. A worn contactor causes chattering, welded contacts that won't shut off, or a unit that simply won't start.

Specifications

Spec	Value
OEM Part Number	1173690
Type	Definite Purpose Contactor, 1-Pole
Brand	ICP
Contact Rating	40 Amps
Coil Voltage	24 VAC
Poles	1
Fitment	OEM direct replacement

Compatibility

Direct OEM replacement for the ICP / Tempstar / Heil WPG3604090RKC1 packaged unit. Confirm the amp rating, pole count, and 24V coil match your original before installing.

Installation Guide

Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter at the line terminals.
Access — Remove the service panel to reach the control compartment.
Document — Photograph every wire and terminal position before disconnecting.
Remove — Transfer wires one at a time, then unscrew and lift out the old contactor.
Install — Mount the new contactor and reconnect line, load, and 24V coil wires per your photo.
Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly without chatter.

Signs You Need a Replacement

Loud buzzing or chattering when the unit runs
Compressor won't shut off (welded contacts)
Pitted, blackened, or burned contacts
Coil reads open on a continuity test

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 Contactor for WPG3604...

$41.60

Frequently Asked Questions

Does this Contactor fit my ICP WPG3604090RKC1 — 40A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPG3604090RKC1 — 40A 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 WPG3604090RKC1 — 40A 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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