What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS120HTCA0AAA – 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 RGS120HTCA0AAA – 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 30A Contactor for RGS120HTCA0AAA – 24V Coil | Ships Today

Name: ICP 2-Pole 30A Contactor for RGS120HTCA0AAA – 24V Coil | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 32.95 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This genuine OEM 2-pole 30-amp contactor (PN 1178074) with a 24-volt control coil is the electromagnetic switch that energizes the load on the ICP (Tempstar/Heil) RGS120HTCA0AAA system. When the thermostat calls, the 24V coil pulls the contacts closed and sends line voltage to the connected components; when the call ends, the coil releases and the contacts open. Contactors are high-wear parts — the silver contacts pit and burn from repeated arcing, and the coil can fail open. A failing contactor causes no-start conditions, chattering, or contacts that weld shut and won't shut the system off. Replacing it with the correct OEM 30A/24V unit restores reliable switching.

Specifications

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

Compatibility

Built for the ICP RGS120HTCA0AAA and used across ICP-family equipment from ICP, Tempstar, Heil, and Comfortmaker that specify a 2-pole 30A contactor with a 24V coil. Confirm pole count, amperage, and coil voltage against the old part before installing.

Installation Guide

Safety First – Disconnect power at the disconnect and breaker; verify zero voltage with a multimeter across all terminals.
Access – Remove the electrical service panel.
Document – Photograph every line, load, and coil wire before disconnecting.
Remove – Transfer wires one at a time, or label them, then unscrew the old contactor from its mount.
Install – Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test – Restore power, initiate a call, and confirm the contacts pull in cleanly and release fully.

Signs You Need a Replacement

Pitted, burned, or welded contacts
Buzzing or chattering when energized
System won't start or won't shut off
Open or burned-out 24V coil

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 Contactor for RGS...

$32.95

Frequently Asked Questions

Does this Contactor fit my ICP RGS120HTCA0AAA – 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS120HTCA0AAA – 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 RGS120HTCA0AAA – 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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