What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS150SFAA0AGAA — 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 RGS150SFAA0AGAA — 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 & 40A Contactor for RGS150SFAA0AGAA — 24V Coil | Ships Today

Name: ICP 2-Pole 30A & 40A Contactor for RGS150SFAA0AGAA — 24V Coil | Ships Today
Brand: ICP
SKU: 1178074
Price: 44.20 USD
Availability: InStock

SKU: 1178074 Brand: ICP

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Overview

This genuine OEM 2-pole definite purpose contactor fits the ICP/Heil/Tempstar RGS150SFAA0AGAA and is available in 30A (Part #1178074) and 40A (Part #1178211) ratings, both with a 24V control coil. The contactor is the high-current switch that energizes the compressor and condenser fan motor when the thermostat calls for cooling. Pitted, welded, or chattering contacts are one of the most common no-cool failures — burnt contacts cause hard starts, voltage drop, and compressor stress, while a failed coil leaves the system completely dead on a cooling call.

Specifications

Spec	Value
Part Numbers	1178074 (30A), 1178211 (40A)
Type	Definite Purpose Contactor
Poles	2-Pole
Amp Rating	30A / 40A
Coil Voltage	24V
Brand	ICP / Heil / Tempstar
Fitment	OEM Direct Replacement

Compatibility

Direct OEM replacement for the ICP/Heil/Tempstar RGS150SFAA0AGAA. Confirm whether your unit uses the 30A or 40A rating from the original contactor's label before ordering. The 24V coil matches standard residential control circuits.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, and verify zero voltage at the contactor terminals with a multimeter.
Access — Remove the unit's electrical service panel to expose the contactor.
Document — Photograph every line, load, and coil wire before disconnecting anything.
Remove — Move wires one at a time to the new contactor, then unbolt the old contactor from its bracket.
Install — Mount the new contactor, transfer wiring exactly per your photo, and confirm all terminal screws are tight.
Test — Restore power, trigger a cooling call, and verify the contactor pulls in cleanly and the compressor/fan energize.

Signs You Need a Replacement

Loud buzzing, humming, or chattering from the contactor
Burnt, pitted, or welded contacts
System fails to start on a cooling call
Compressor short-cycling or hard starting

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 & 40A Contactor f...

$44.20

Frequently Asked Questions

Does this Contactor fit my ICP RGS150SFAA0AGAA — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS150SFAA0AGAA — 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 RGS150SFAA0AGAA — 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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