What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS150SFCA0AAAA — OEM 1178074 | 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 RGS150SFCA0AAAA — OEM 1178074 | 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 RGS150SFCA0AAAA — OEM 1178074 | Ships Today

Name: ICP 2-Pole 30A 24V Contactor for RGS150SFCA0AAAA — OEM 1178074 | 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 24-volt coil (part number 1178074) for the ICP Tempstar Heil RGS150SFCA0AAAA. The contactor is the electromechanical switch that powers up the compressor and condenser fan motor whenever the thermostat calls for cooling. The 24V coil energizes, pulling the contacts closed to pass line voltage to the high-draw components. Contactors are one of the most common HVAC failure points — their contacts pit, burn, and weld over thousands of cycles, while ants, debris, and corrosion can jam the plunger. A failing contactor causes hard starts, chattering, intermittent cooling, or a unit that won't start at all.

Specifications

Spec	Value
Part Number	1178074
Description	Contactor, 2-Pole, 30A, 24V
Type	2-Pole Definite Purpose Contactor
Contact Rating	30 Amps
Coil Voltage	24 VAC
Poles	2
Brand	ICP / Tempstar / Heil
Fits Model	RGS150SFCA0AAAA
Fit	Direct OEM Replacement

Compatibility

Direct-fit replacement for the ICP Tempstar Heil RGS150SFCA0AAAA. This 2-pole 30A 24V contactor is used across many ICP-family condensing units (Tempstar, Heil, Comfortmaker, Arcoaire, KeepRite). Confirm part number 1178074, pole count, contact amperage, and 24V coil rating against your existing contactor before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage across all terminals with a multimeter.
Access — Remove the electrical access panel on the condensing unit.
Document — Photograph every wire and terminal position on the old contactor before disconnecting.
Remove — Transfer wires one at a time, or label them, then unmount the old contactor.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photos.
Test — Restore power, call for cooling, and verify the contactor pulls in cleanly with the compressor and fan starting.

Signs You Need a Replacement

Buzzing, humming, or chattering from the contactor
Burned, pitted, or welded contacts
Compressor/fan won't start or starts intermittently
Visible corrosion, melted housing, or stuck plunger

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...

$32.95

Frequently Asked Questions

Does this Contactor fit my ICP RGS150SFCA0AAAA — OEM 1178074 | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS150SFCA0AAAA — OEM 1178074 | 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 RGS150SFCA0AAAA — OEM 1178074 | 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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