What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPA4484000RKA1 — 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 WPA4484000RKA1 — 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 WPA4484000RKA1 — 24V Coil | Ships Today

Name: ICP 1-Pole 40A Contactor for WPA4484000RKA1 — 24V Coil | Ships Today
Brand: ICP
SKU: 1173690
Price: 42.84 USD
Availability: InStock

SKU: 1173690 Brand: ICP

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Overview

This is a genuine OEM 1-pole, 40 amp contactor (part number 1173690) with a 24-volt coil, built for the ICP/Tempstar/Heil model WPA4484000RKA1 condensing unit. A contactor is the high-current switch that powers your outdoor compressor and condenser fan motor. When the thermostat calls for cooling, the 24V control circuit energizes the coil, pulling the contacts closed and sending line voltage to the compressor. Because it cycles thousands of times per season, the contacts eventually pit, burn, or weld together. A failing contactor causes the outdoor unit to hum without starting, run continuously after the thermostat is satisfied, or chatter as the contacts make and break erratically. Replacing it is one of the most common and cost-effective HVAC repairs.

Specifications

Spec	Value
Part Number	1173690
Type	Definite Purpose Contactor, 1-Pole
Brand	ICP / Tempstar / Heil
Contact Rating	40 Amps
Coil Voltage	24V
Poles	1
Fits Model	WPA4484000RKA1

Compatibility

Engineered for the ICP, Tempstar, Heil, and Comfortmaker family unit WPA4484000RKA1, and a direct OEM replacement for part 1173690. Always confirm the amp rating, pole count, and 24V coil against the contactor currently installed in your condensing unit before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the condenser service panel covering the electrical compartment.
Document — Photograph every wire and its terminal position before disconnecting anything.
Remove — Note line, load, and coil leads, then transfer wires one at a time off the old contactor and unbolt it from the bracket.
Install — Mount the new contactor, reconnect each wire to the matching terminal per your photo.
Test — Restore power, call for cooling, and confirm the contacts pull in and the compressor starts cleanly.

Signs You Need a Replacement

Outdoor unit hums or buzzes but the compressor will not start.
Visible pitting, melting, or burn marks on the contact points.
Unit keeps running after the thermostat is satisfied (welded contacts).
Chattering or rapid clicking when the system tries to engage.

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 WPA...

$42.84

Frequently Asked Questions

Does this Contactor fit my ICP WPA4484000RKA1 — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPA4484000RKA1 — 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 WPA4484000RKA1 — 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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