What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS120SEAA0AGAA — 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 RGS120SEAA0AGAA — 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 2-Pole 30A Contactor for RGS120SEAA0AGAA — 24V Coil | Ships Today

Name: ICP 2-Pole 30A Contactor for RGS120SEAA0AGAA — 24V Coil | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 32.95 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This is the genuine OEM 2-pole, 30-amp contactor with a 24V coil (OEM 1178074) for the ICP/Heil/Tempstar RGS120SEAA0AGAA system. A contactor is the electrically operated switch that connects line voltage to high-current loads when the control circuit calls for operation. When the 24V coil energizes, the contactor pulls in and closes both poles, sending power to the load; when the call ends, it drops out. Contactor contacts wear with every cycle — they pit, burn, and can weld shut or fail to close. Symptoms range from a unit that won't start, to chattering and buzzing, to a system that won't shut off because the contacts have welded. Installing the correct OEM 30A / 24V contactor restores reliable switching with the proper contact rating and coil voltage.

Specifications

Spec	Value
Part Number	1178074
Type	2-Pole Definite Purpose Contactor
Brand	ICP / Heil / Tempstar / Comfortmaker
Current Rating	30 Amps
Coil Voltage	24V
Poles	2 (Double Pole)

Compatibility

Direct-fit replacement for the ICP/Heil/Tempstar RGS120SEAA0AGAA unit and related models calling for a 2-pole 30A contactor with a 24V coil. Confirm your model and serial number before ordering.

Installation Guide

Safety First — Disconnect electrical power at the disconnect and breaker. Verify zero voltage with a multimeter on both line terminals.
Access — Remove the electrical compartment service panel.
Document — Photograph all line, load, and 24V coil wiring before disconnecting.
Remove — Label and disconnect each wire, then unbolt the old contactor from its mount.
Install — Mount the new contactor, reconnect line, load, and coil leads per your photo, and torque terminals snug.
Test — Restore power, initiate a call for operation, and confirm the contactor pulls in cleanly and the load energizes.

Signs You Need a Replacement

System won't start even though 24V is present at the coil.
Loud buzzing, humming, or chattering from the contactor.
Pitted, burned, or welded contacts.
Unit fails to shut off because contacts are stuck closed.

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day hassle-free 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 Contactor for RGS...

$32.95

Frequently Asked Questions

Does this Contactor fit my ICP RGS120SEAA0AGAA — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS120SEAA0AGAA — 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 RGS120SEAA0AGAA — 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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