What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS150SEAA0AKAA — 30A & 40A 24V Coil Options | 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 RGS150SEAA0AKAA — 30A & 40A 24V Coil Options | 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 for RGS150SEAA0AKAA — 30A & 40A 24V Coil Options | Ships Today

Name: ICP 2-Pole Contactor for RGS150SEAA0AKAA — 30A & 40A 24V Coil Options | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 32.00 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

These are the genuine OEM 2-pole contactors for the ICP/Heil/Tempstar RGS150SEAA0AKAA system, offered in 30 amp (part 1178074) and 40 amp (part 1178211) ratings, both with a 24-volt coil. The contactor is the electrically controlled switch that powers the compressor and condenser fan whenever the thermostat calls for cooling — the 24V coil pulls the contacts closed to send line voltage to the load. Contactors are high-wear items: their silver contacts pit, arc, and burn over thousands of cycles. Failed contacts cause a unit that hums but will not start, chatters, or sticks closed and runs continuously. Choose the amp rating that matches your existing contactor.

Specifications

Spec	Value
30A Part Number	1178074
40A Part Number	1178211
Type	2-Pole Definite Purpose Contactor
Poles	2
Amp Rating	30A / 40A
Coil Voltage	24V
Brand	ICP / Heil / Tempstar / Comfortmaker

Compatibility

Built for the ICP RGS150SEAA0AKAA and related Heil, Tempstar, and Comfortmaker units. Match the amp rating (30A or 40A) and the 24V coil to your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power at the disconnect and verify zero voltage with a multimeter.
Access — Remove the control panel cover to expose the contactor.
Document — Photograph every line, load, and 24V coil wire before disconnecting.
Remove — Transfer wires one at a time, or unbolt the old contactor and move leads to the new one to avoid miswiring.
Install — Mount the new contactor, land the line and load conductors on L1/L2 and T1/T2, and connect the 24V coil leads per your photo.
Test — Restore power, call for cooling, and confirm the contacts pull in cleanly and the compressor and fan start.

Signs You Need a Replacement

Unit hums or buzzes but the compressor will not start.
Pitted, burned, or welded contacts.
Chattering contactor or audible arcing on engagement.
Contacts stuck closed, causing the unit to run nonstop.

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 for RGS150S...

$32.00

Frequently Asked Questions

Does this Contactor fit my ICP RGS150SEAA0AKAA — 30A & 40A 24V Coil Options | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS150SEAA0AKAA — 30A & 40A 24V Coil Options | 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 RGS150SEAA0AKAA — 30A & 40A 24V Coil Options | 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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