What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPG4484090RKA1 — OEM Part 1173690 | 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 WPG4484090RKA1 — OEM Part 1173690 | 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 24V Contactor for WPG4484090RKA1 — OEM Part 1173690 | Ships Today

Name: ICP 1-Pole 40A 24V Contactor for WPG4484090RKA1 — OEM Part 1173690 | Ships Today
Brand: ICP
SKU: WPG4484090RKA1
Price: 38.94 USD
Availability: InStock

SKU: WPG4484090RKA1 Brand: ICP

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Overview

This genuine OEM 1-pole, 40-amp contactor (part number 1173690) is the electrical switch that energizes the compressor and condenser fan in your ICP WPG4484090RKA1 packaged unit. When the thermostat calls for cooling, the 24V control coil pulls the contacts closed and sends line power to the compressor. Over thousands of cycles the contacts pit, burn, and weld from arcing, while the coil can buzz or fail open. A worn contactor causes hard starts, chattering, a compressor that won't engage, or one that won't shut off — making this one of the most common and inexpensive HVAC service replacements.

Specifications

Spec	Value
Part Number	1173690
Type	Definite Purpose Contactor
Brand	ICP / Tempstar / Heil
Poles	1-Pole
Contact Rating	40 Amps
Coil Voltage	24 VAC
Fits Model	WPG4484090RKA1
Fitment	OEM Direct Replacement

Compatibility

Factory-specified for the ICP WPG4484090RKA1 packaged gas/electric unit and compatible across the Tempstar, Heil, and Comfortmaker units built on this platform that use a 40A 24V single-pole contactor. Confirm amp rating, pole count, and coil voltage against your existing part.

Installation Guide

Safety First — Disconnect power at the unit and main panel and verify zero voltage with a multimeter.
Access — Remove the electrical service panel to reach the contactor.
Document — Photograph every line, load, and coil wire before disconnecting.
Remove — Label and pull the leads, then unscrew the old contactor from its bracket.
Install — Mount the new contactor and reconnect each wire exactly per your photo, including the 24V coil leads.
Test — Restore power and confirm the contacts pull in on a cooling call and drop out cleanly when satisfied.

Signs You Need a Replacement

Chattering or buzzing at the contactor
Pitted, burned, or welded contacts visible on inspection
Compressor won't start, or won't shut off after the call ends
Coil is open or won't pull in at 24V

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 24V Contactor for...

$38.94

Frequently Asked Questions

Does this Contactor fit my ICP WPG4484090RKA1 — OEM Part 1173690 | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPG4484090RKA1 — OEM Part 1173690 | 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 WPG4484090RKA1 — OEM Part 1173690 | 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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