What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS150HECA0AAAA – 30A & 40A 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 RGS150HECA0AAAA – 30A & 40A 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 Definite Purpose Contactor for RGS150HECA0AAAA – 30A & 40A 24V Coil | Ships Today

Name: ICP 2-Pole Definite Purpose Contactor for RGS150HECA0AAAA – 30A & 40A 24V Coil | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 32.00 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This is a genuine OEM 2-pole definite purpose contactor for the ICP/Tempstar/Heil RGS150HECA0AAAA gas furnace and its matched condensing unit. The contactor is the electrically-controlled switch that energizes the compressor and condenser fan motor when the 24V control circuit calls for cooling. Two OEM ratings are offered: part 1178074 (2-pole, 30A, 24V coil) and part 1178211 (2-pole, 40A, 24V coil). Select the amperage that matches your existing contactor's stamped rating. Common failure symptoms include pitted or welded contacts, a buzzing or chattering coil, the outdoor unit failing to start, or the compressor running continuously because the contacts will not open.

Specifications

Spec	Value
Part Number	1178074 (30A) / 1178211 (40A)
Type	Definite Purpose Contactor
Brand	ICP / Tempstar / Heil / Comfortmaker
Poles	2
Contact Rating	30A or 40A
Coil Voltage	24V
Fitment	OEM

Compatibility

Designed for the ICP/Tempstar/Heil RGS150HECA0AAAA and its companion outdoor condensing unit. Also a common service replacement across many International Comfort Products family systems (Heil, Tempstar, Comfortmaker, Arcoaire, KeepRite) that use a 24V-coil 2-pole contactor. Always verify pole count, coil voltage, and amperage against the unit you are servicing.

Installation Guide

Safety First – Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter across the line terminals.
Access – Remove the condensing unit service panel.
Document – Photograph all line, load, and 24V coil wiring before disconnecting.
Remove – Transfer one wire at a time, or label each wire, then unscrew the old contactor from the mounting bracket.
Install – Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test – Restore power, call for cooling, and confirm the contactor pulls in cleanly and the compressor and fan start.

Signs You Need a Replacement

Pitted, burnt, or welded contacts visible on inspection
Loud buzzing or chattering from the coil
Outdoor unit will not start on a cooling call
Compressor will not shut off because contacts won't release

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns on uninstalled 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 Definite Purpose Cont...

$32.00

Frequently Asked Questions

Does this Contactor fit my ICP RGS150HECA0AAAA – 30A & 40A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS150HECA0AAAA – 30A & 40A 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 RGS150HECA0AAAA – 30A & 40A 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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