What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS180SECA0AAAA — 1178074 | 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 RGS180SECA0AAAA — 1178074 | 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 Contactor 2-Pole 30A 24V for RGS180SECA0AAAA — 1178074 | Ships Today

Name: ICP Contactor 2-Pole 30A 24V for RGS180SECA0AAAA — 1178074 | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 34.95 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This is a genuine OEM 2-pole definite purpose contactor (part number 1178074) for the ICP / Tempstar / Heil RGS180SECA0AAAA gas furnace and its associated condensing unit. The contactor is an electrically controlled switch that energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. Rated at 30 amps per pole with a 24V control coil, it carries the high-voltage load while being safely triggered by the low-voltage control circuit. When a contactor fails you may see chattering, pitted or welded contacts, a buzzing hum, intermittent cooling, or a complete no-start condition. Replacing a worn contactor restores reliable switching and protects the more expensive compressor from damaging short-cycling.

Specifications

Spec	Value
Part Number	1178074
Type	Definite Purpose Contactor
Brand	ICP / Tempstar / Heil
Poles	2-Pole
Contact Rating	30 Amps
Coil Voltage	24V
Fitment	OEM Direct Replacement

Compatibility

Designed as a direct-fit replacement for the ICP / Tempstar / Heil RGS180SECA0AAAA system. This 2-pole 30A 24V contactor is also a common service part across many comparable ICP-family condensing units. Always verify your existing contactor's pole count, amp rating, and coil voltage before installing.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter before touching any wiring.
Access — Remove the condensing unit's electrical access panel.
Document — Photograph all wire connections before disconnecting anything.
Remove — Label and disconnect the line, load, and 24V coil wires, then unscrew the old contactor from its mounting base.
Install — Mount the new contactor, then reconnect each wire exactly per your photo, ensuring tight terminal connections.
Test — Restore power and initiate a cooling call; confirm the contactor pulls in cleanly and the compressor and fan energize.

Signs You Need a Replacement

Loud buzzing or chattering from the contactor during operation
Pitted, burned, or welded contacts that stick closed
Compressor and condenser fan fail to start on a cooling call
Intermittent cooling or repeated short-cycling

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 Contactor 2-Pole 30A 24V for...

$34.95

Frequently Asked Questions

Does this Contactor fit my ICP RGS180SECA0AAAA — 1178074 | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS180SECA0AAAA — 1178074 | 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 RGS180SECA0AAAA — 1178074 | 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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