What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGX048KMCA0AAA — 40 Amp | 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 RGX048KMCA0AAA — 40 Amp | 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 40A for RGX048KMCA0AAA — 40 Amp | Ships Today

Name: ICP Contactor 40A for RGX048KMCA0AAA — 40 Amp | Ships Today
Brand: ICP
SKU: 1176763
Price: 45.44 USD
Availability: InStock

SKU: 1176763 Brand: ICP

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Overview

This OEM 40 amp contactor (part 1176763) for the ICP Tempstar Heil RGX048KMCA0AAA is the electromagnetic switch that energizes the compressor and condenser fan motor on a call for cooling. When the thermostat closes, the 24V coil pulls the contacts together, sending line voltage to the outdoor unit. Rated for 40 amps, this contactor handles the inrush and running load of the system reliably. Contactors are a common failure point — the contacts pit and burn from arcing over thousands of cycles, and the coil can stick or chatter. A failing 40A contactor causes a system that won't start, buzzing at the outdoor unit, or a compressor that runs continuously because welded contacts won't open.

Specifications

Spec	Value
Part Number	1176763
Type	Contactor
Brand	ICP / Tempstar / Heil
Rating	40 Amps
Coil Voltage	24V (typical)
Fit	OEM replacement

Compatibility

Built for the ICP Tempstar Heil RGX048KMCA0AAA and compatible ICP-family systems specifying a 40A contactor. Verify pole count and coil voltage against your existing contactor before installing.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the unit's electrical access panel.
Document — Photograph all line, load, and coil wires before disconnecting.
Remove — Move wires to the new contactor one at a time, then unscrew and lift out the old contactor.
Install — Mount the new 40A contactor and reconnect each wire exactly per your photo.
Test — Restore power and confirm the contactor pulls in and the compressor and fan start on a cooling call.

Signs You Need a Replacement

Pitted, burned, or welded contacts
Buzzing or chattering at the outdoor unit
System won't start on a cooling call
Compressor runs nonstop because contacts won't open

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. 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 40A for RGX048KMCA...

$45.44

Frequently Asked Questions

Does this Contactor fit my ICP RGX048KMCA0AAA — 40 Amp | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGX048KMCA0AAA — 40 Amp | 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 RGX048KMCA0AAA — 40 Amp | 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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