What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS102HFCA0AAA — OEM 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 RGS102HFCA0AAA — OEM 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 2-Pole 30A 24V Contactor for RGS102HFCA0AAA — OEM 1178074 | Ships Today

Name: ICP 2-Pole 30A 24V Contactor for RGS102HFCA0AAA — OEM 1178074 | Ships Today
Brand: ICP
SKU: 1178074
Price: 42.84 USD
Availability: InStock

SKU: 1178074 Brand: ICP

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Overview

The OEM 2-Pole 30 Amp Contactor (Part No. 1178074) is the electromechanical switch that powers the compressor and condenser fan motor on your ICP/Tempstar/Heil RGS102HFCA0AAA system. When the thermostat calls for cooling, the 24-volt control circuit energizes the contactor coil, which pulls the contacts closed and sends line voltage to the outdoor unit. Because it switches high current thousands of times per season, the contactor is one of the most common wear items in HVAC service. Pitted, burned, or welded contacts cause hard starts, chattering, buzzing, or a unit that won't shut off — and welded contacts can keep the compressor running continuously, a frequent cause of premature compressor failure. This genuine 2-pole, 30A, 24V-coil contactor restores reliable switching to factory specification.

Specifications

Spec	Value
Part Number	1178074
Type	Definite-purpose contactor, 2-pole
Brand	ICP / Tempstar / Heil
Contact Rating	30 Amps
Coil Voltage	24V
Poles	2
Fitment	OEM exact replacement

Compatibility

Designed for the ICP, Tempstar, and Heil RGS102HFCA0AAA and related units using a 2-pole 30A definite-purpose contactor with a 24V coil. Confirm the amp rating, pole count, and coil voltage against your existing contactor before installing. Verify your model and serial number to ensure exact fitment.

Installation Guide

Safety First — Disconnect power at the unit disconnect and breaker. Verify zero voltage at the contactor terminals with a multimeter.
Access — Remove the electrical/service panel on the condensing unit.
Document — Photograph every wire and terminal position before disconnecting.
Remove — Label and disconnect the line, load, and 24V coil wires, then unscrew the old contactor from the mounting bracket.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photos.
Test — Restore power, initiate a cooling call, and confirm the contactor pulls in cleanly with no chatter and the compressor and fan energize.

Signs You Need a Replacement

Loud humming, buzzing, or chattering from the outdoor unit.
Pitted, burned, or welded contacts visible on inspection.
Compressor won't start or won't shut off.
Intermittent cooling or the unit only runs when the contactor is pressed manually.

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 30A 24V Contactor for...

$42.84

Frequently Asked Questions

Does this Contactor fit my ICP RGS102HFCA0AAA — OEM 1178074 | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS102HFCA0AAA — OEM 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 RGS102HFCA0AAA — OEM 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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