What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS150HEAA0AGAA — OEM | 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 RGS150HEAA0AGAA — OEM | 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 for RGS150HEAA0AGAA — OEM | Ships Today

Name: ICP 2-Pole Contactor 30A/40A 24V for RGS150HEAA0AGAA — OEM | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 34.00 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This is the OEM 2-pole definite-purpose contactor for the ICP / Tempstar / Heil RGS150HEAA0AGAA. Two ratings are offered for this model: 1178074 (2-pole, 30 amp, 24V coil) and 1178211 (2-pole, 40 amp, 24V coil). The contactor is the relay that switches line voltage to the compressor and outdoor fan motor; when the thermostat calls for cooling, the 24-volt control coil pulls the contacts closed and energizes the condensing unit. Burned, pitted, or chattering contacts are one of the most common causes of a unit that won't start, hums but won't run, or short-cycles. Replacing a failing contactor restores reliable, clean switching to the compressor circuit.

Specifications

Spec	Value
Part Numbers	1178074 (30A), 1178211 (40A)
Type	Definite Purpose Contactor
Brand	ICP (Tempstar / Heil)
Poles	2-Pole
Contact Rating	30A or 40A (per part number)
Coil Voltage	24V
Application	AC compressor / condenser fan

Compatibility

Fits the ICP RGS150HEAA0AGAA and related ICP, Tempstar, Heil, and Comfortmaker condensing units. Match the amperage (30A or 40A) to your original contactor or unit rating plate, and confirm a 24V coil before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage on all terminals with a multimeter.
Access — Remove the control-access panel on the condensing unit.
Document — Photograph all line, load, and 24V coil wires before disconnecting anything.
Remove — Transfer wires one at a time to the new contactor, or label each lead, then unbolt the old contactor.
Install — Mount the new contactor, reconnect each wire exactly per your photo, and confirm the coil leads land on the 24V terminals.
Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly and the compressor and fan start.

Signs You Need a Replacement

Burned, pitted, or welded contacts
Unit hums but compressor won't start
Loud chattering or buzzing from the contactor
Intermittent cooling or short-cycling

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day returns on unused parts. 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...

$34.00

Frequently Asked Questions

Does this Contactor fit my ICP RGS150HEAA0AGAA — OEM | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS150HEAA0AGAA — OEM | 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 RGS150HEAA0AGAA — OEM | 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.

Menu