What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPG3484090LKC1 — 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 WPG3484090LKC1 — 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 40A Contactor for WPG3484090LKC1 — 24V Coil | Ships Today

Name: ICP 1-Pole 40A Contactor for WPG3484090LKC1 — 24V Coil | Ships Today
Brand: ICP
SKU: 1173690
Price: 37.70 USD
Availability: InStock

SKU: 1173690 Brand: ICP

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Overview

This OEM 1-pole 40 amp definite purpose contactor (part number 1173690) switches line power to the compressor and condenser fan in your ICP/Tempstar/Heil WPG3484090LKC1 packaged unit. When the thermostat calls for cooling, the 24V coil energizes and pulls the contacts closed, sending high voltage to the outdoor components. Over time the silver contacts pit, burn, and weld from arcing, while the coil can fail open. Symptoms of a failing contactor include a unit that won't start, a loud chattering or buzzing at the contactor, contacts stuck closed so the compressor runs constantly, or visible burn/pitting on the contact points.

Specifications

Spec	Value
Part Number	1173690
Type	Definite Purpose Contactor, 1-Pole
Brand	ICP / Tempstar / Heil
Contact Rating	40A
Coil Voltage	24V
Poles	1

Compatibility

Direct OEM replacement for the contactor in the ICP/Tempstar/Heil WPG3484090LKC1 packaged gas/electric unit and compatible ICP-family equipment using a 1-pole 40A 24V coil contactor. Verify pole count, amp rating, and coil voltage against your existing part.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the electrical service panel.
Document — Photograph all line, load, and coil wiring before disconnecting.
Remove — Transfer wires one at a time, then unscrew and remove the old contactor.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photos.
Test — Restore power, call for cooling, and confirm the coil pulls in cleanly and the compressor/fan start.

Signs You Need a Replacement

Loud chattering or buzzing when the system calls for cooling
Burned, pitted, or welded contacts
Compressor won't start or runs continuously
Coil tests open or out of spec

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 40A Contactor for WPG...

$37.70

Frequently Asked Questions

Does this Contactor fit my ICP WPG3484090LKC1 — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPG3484090LKC1 — 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 WPG3484090LKC1 — 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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