What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS150SFBA0AGAA — 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 RGS150SFBA0AGAA — 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 Contactor 30A/40A 24V Coil for RGS150SFBA0AGAA — Ships Today

Name: ICP 2-Pole Contactor 30A/40A 24V Coil for RGS150SFBA0AGAA — Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 36.95 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This is a genuine OEM 2-pole definite-purpose contactor for ICP, Heil, and Tempstar systems, available as a 30-amp unit (part 1178074) and a 40-amp unit (part 1178211), both with a 24-volt coil. The contactor is the high-current switch that energizes the compressor and outdoor fan whenever the 24V control signal calls for cooling. When the thermostat closes the circuit, the 24V coil pulls the two poles closed, sending line voltage to the condensing unit; when the call ends, the contacts open and the unit shuts down. Over time the contacts pit and burn from the inrush current of every compressor start, eventually causing chatter, dropped voltage, or contacts that weld shut and leave the unit running. A failed contactor is one of the most common causes of an outdoor unit that won't start — or won't stop.

Specifications

Spec	Value
Part Numbers	1178074 (30A), 1178211 (40A)
Type	Definite-Purpose Contactor
Brand	ICP / Heil / Tempstar
Poles	2-Pole
Contact Rating	30A / 40A (FLA)
Coil Voltage	24 VAC
Fit	OEM Replacement

Compatibility

Direct OEM fit for the ICP/Heil/Tempstar RGS150SFBA0AGAA packaged unit and related ICP-family condensing units. Match the amperage (30A or 40A) and confirm a 24V coil against your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power at the breaker and disconnect, and verify zero voltage with a multimeter on both line terminals.
Access — Remove the service panel to expose the electrical compartment.
Document — Photograph every wire on the contactor before disconnecting.
Remove — Label and pull the line, load, and 24V coil wires, then unscrew the old contactor from its base.
Install — Mount the new contactor, reconnect each wire to the matching terminal per your photo.
Test — Restore power and confirm the contactor pulls in on a cooling call and the compressor and fan start normally.

Signs You Need a Replacement

Outdoor unit won't start on a call for cooling
Loud humming, buzzing, or chattering from the contactor
Unit keeps running after the thermostat is satisfied (welded contacts)
Visible pitting, burning, or melted plastic on the contactor

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 Contactor 30A/40A 24V...

$36.95

Frequently Asked Questions

Does this Contactor fit my ICP RGS150SFBA0AGAA — Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS150SFBA0AGAA — 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 RGS150SFBA0AGAA — 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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