What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS120HSCA0AAA — 30 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 RGS120HSCA0AAA — 30 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 2-Pole 30A 24V Contactor for RGS120HSCA0AAA — 30 Amp | Ships Today

Name: ICP 2-Pole 30A 24V Contactor for RGS120HSCA0AAA — 30 Amp | Ships Today
Brand: ICP
SKU: 1178074
Price: 37.70 USD
Availability: InStock

SKU: 1178074 Brand: ICP

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Overview

This is a genuine OEM 2-pole, 30-amp contactor with a 24-volt coil, part number 1178074, for the ICP Tempstar Heil RGS120HSCA0AAA. The contactor is the high-current switch that energizes the compressor and condenser fan motor when the thermostat calls for cooling. A 24V signal pulls in the coil, closing both 30A poles to deliver line voltage to the outdoor unit. Because it cycles thousands of times per season, the contacts eventually pit, burn, or weld — leading to a system that won't start, won't shut off, or chatters loudly. Installing the correct OEM 2-pole 30A contactor restores clean, reliable switching and protects the compressor from the voltage problems caused by failing contacts.

Specifications

Spec	Value
Part Number	1178074
Type	Contactor, double-pole
Brand	ICP / Tempstar / Heil
Contact Rating	30 Amps
Coil Voltage	24 VAC
Poles	2

Compatibility

Fits the ICP RGS120HSCA0AAA and a wide range of Tempstar, Heil, and Comfortmaker condensing units calling for a 2-pole 30A/24V contactor. Match poles, amperage, and coil voltage to your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker; verify zero voltage with a multimeter.
Access — Remove the condenser service panel to reach the contactor.
Document — Photograph all line, load, and 24V coil wiring before disconnecting.
Remove — Label and disconnect the wires, unscrew the old contactor from its mounting base.
Install — Mount the new contactor and reconnect every wire to the matching terminal per your photo.
Test — Restore power and confirm the contactor pulls in on a cooling call and the compressor/fan energize.

Signs You Need a Replacement

Compressor or condenser fan won't start on a cooling call
Loud buzzing, humming, or chattering from the contactor
Burned, pitted, or welded contacts
Outdoor unit runs continuously and won't shut off

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 2-Pole 30A 24V Contactor for...

$37.70

Frequently Asked Questions

Does this Contactor fit my ICP RGS120HSCA0AAA — 30 Amp | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS120HSCA0AAA — 30 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 RGS120HSCA0AAA — 30 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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