What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS120HTAB0AAA — 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 RGS120HTAB0AAA — 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 RGS120HTAB0AAA — 24V Coil | Ships Today

Name: ICP 2-Pole 30A Contactor for RGS120HTAB0AAA — 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 is a genuine OEM 2-pole definite-purpose contactor (Part No. 1178074) for the ICP/Tempstar/Heil RGS120HTAB0AAA. Rated at 30 amps with a 24-volt coil, the contactor is the electrically-controlled switch that energizes the high-voltage circuit feeding the blower, inducer, or condenser components when the control board calls for operation. When the coil receives 24V, the contacts close and pass line voltage to the load; when the call ends, the contacts open. Over years of cycling, the silver-cadmium contacts pit, burn, and weld, while the coil can short or open. Common failure symptoms include a humming or chattering contactor, equipment that fails to start, a unit that runs continuously because the contacts have welded shut, or visible arcing and burnt terminals.

Specifications

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

Compatibility

Engineered as the exact-fit OEM replacement for the ICP RGS120HTAB0AAA gas furnace and matching Tempstar, Heil, and Comfortmaker badge-engineered models that share this chassis. Always confirm your existing contactor's amp rating, pole count, and 24V coil before installing.

Installation Guide

Safety First — Disconnect power at the breaker/disconnect and verify zero voltage with a multimeter at the contactor terminals.
Access — Remove the service panel to expose the electrical compartment.
Document — Photograph all line, load, and coil wiring before disconnecting.
Remove — Label and disconnect the high-voltage line/load leads and the two 24V coil wires, then unscrew the old contactor from its bracket.
Install — Mount the new contactor, reconnect each wire to the matching terminal per your photo.
Test — Restore power and confirm the contacts pull in on a call and drop out cleanly when the call ends.

Signs You Need a Replacement

Loud buzzing, humming, or chattering when the unit is called to run
Equipment will not start even though 24V is present at the coil
Unit runs nonstop because the contacts have welded closed
Visible pitting, melting, or burnt/arced terminals

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 RGS120HTAB0AAA — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS120HTAB0AAA — 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 RGS120HTAB0AAA — 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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