What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS150HEAA0AAAA — 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 RGS150HEAA0AAAA — 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 RGS150HEAA0AAAA — OEM | Ships Today

Name: ICP 2-Pole Contactor 30A/40A 24V for RGS150HEAA0AAAA — OEM | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 32.00 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This OEM 2-pole definite-purpose contactor for the ICP / Tempstar / Heil RGS150HEAA0AAAA is offered in 30A (part 1178074) and 40A (part 1178211) ratings, both with a 24V control coil. The contactor is the switching relay that energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. Its 24-volt coil is pulled in by the low-voltage control circuit, closing two sets of heavy-duty line-voltage contacts. Over thousands of cycles the contacts pit, burn, and weld — a leading cause of a unit that won't start, won't shut off, or chatters at the contactor.

Specifications

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

Compatibility

Fits the ICP RGS150HEAA0AAAA and related Tempstar, Heil, and Comfortmaker condensing units. Match the amperage of your existing contactor (30A or 40A) and confirm the 24V coil before ordering.

Installation Guide

Safety First — Disconnect power at the disconnect and verify zero voltage across all terminals with a multimeter.
Access — Remove the electrical service panel to expose the contactor.
Document — Photograph every line, load, and 24V coil wire before disconnecting.
Remove — Transfer wires one at a time to the new contactor, or label each lead, then unscrew the old contactor from the panel.
Install — Mount the new contactor, reconnect each wire exactly per your photo, and confirm the coil terminals land on the 24V leads.
Test — Restore power, call for cooling, and verify the contactor pulls in cleanly with no chatter and both contacts close.

Signs You Need a Replacement

Pitted, burned, or welded contacts
Loud humming, buzzing, or chattering at the contactor
Compressor and fan won't start on a cooling call
Unit continues running after the thermostat is satisfied

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...

$32.00

Frequently Asked Questions

Does this Contactor fit my ICP RGS150HEAA0AAAA — OEM | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS150HEAA0AAAA — 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 RGS150HEAA0AAAA — 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.

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