What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS180HDAA0AAAA — 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 RGS180HDAA0AAAA — 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 40A Contactor for RGS180HDAA0AAAA — 24V Coil | Ships Today

Name: ICP 2-Pole 40A Contactor for RGS180HDAA0AAAA — 24V Coil | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 24.95 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This is a genuine OEM 2-pole definite purpose contactor for the ICP/Heil/Tempstar RGS180HDAA0AAAA gas furnace and matched condensing units. The contactor is an electromagnetic switch with a 24-volt control coil that energizes the line-voltage circuit feeding the compressor and condenser fan motor. When the thermostat calls for cooling, 24V is applied to the coil, pulling the contacts closed and allowing 240V to pass to the compressor. Available in 30A (P/N 1178074) and 40A (P/N 1178211) ratings to match your equipment's load. Pitted, burned, or chattering contacts are the most common failure and cause hard starts, buzzing, or a unit that won't energize at all.

Specifications

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

Compatibility

Designed for the ICP RGS180HDAA0AAAA and shared across the Heil, Tempstar, and Comfortmaker family using the same condensing platform. Confirm the amperage rating against your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker; verify zero voltage with a multimeter.
Access — Remove the unit's electrical access panel.
Document — Photograph all wire positions before disconnecting.
Remove — Disconnect line, load, and 24V coil leads; unscrew the contactor from its bracket.
Install — Mount the new contactor and reconnect each lead per your photo.
Test — Restore power, call for cooling, and confirm the contacts pull in cleanly.

Signs You Need a Replacement

Loud buzzing or chattering from the contactor
Pitted, blackened, or welded contacts
Compressor or condenser fan won't start on a cooling call
Visible arcing or melted housing

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 40A Contactor for RGS...

$24.95

Frequently Asked Questions

Does this Contactor fit my ICP RGS180HDAA0AAAA — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS180HDAA0AAAA — 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 RGS180HDAA0AAAA — 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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