What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS120HDBB0AAA — 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 RGS120HDBB0AAA — 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 RGS120HDBB0AAA — 24V Coil | Ships Today

Name: ICP 2-Pole 30A Contactor for RGS120HDBB0AAA — 24V Coil | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 26.00 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This is the genuine OEM 2-pole, 30-amp definite-purpose contactor with a 24V coil (ICP part number 1178074, "CONTACTOR 2P 30A 24V") for the ICP/Heil/Tempstar RGS120HDBB0AAA system. The contactor is the high-current switch that energizes the compressor and condenser fan when the thermostat calls for cooling — its 24VAC coil pulls the contacts closed to pass line voltage to the load. Contactors are high-wear items: the contacts arc every time they open and close, and over thousands of cycles they pit, weld, or burn. A failing contactor is one of the most common no-cool service calls.

Specifications

Spec	Value
Part Number	1178074
Type	Definite-purpose contactor
Poles	2
Contact Rating	30A
Coil Voltage	24 VAC
Brand	ICP / Heil / Tempstar

Compatibility

Direct-fit OEM replacement for the ICP/Heil/Tempstar RGS120HDBB0AAA and other ICP-family units that originally used a 2-pole 30A 24V contactor. Verify pole count, amp rating, and coil voltage against your existing contactor before installing.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the unit's electrical access panel.
Document — Photograph every wire and terminal on the old contactor before disconnecting.
Remove — Label and disconnect the line, load, and 24V coil wires, then unscrew the old contactor.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test — Restore power, call for cooling, and confirm the contactor pulls in and the compressor/fan energize.

Signs You Need a Replacement

Loud humming, buzzing, or chattering at the contactor.
Compressor/fan won't start, or runs continuously even when satisfied.
Pitted, burned, or welded contacts; melted housing.
Intermittent cooling that responds to tapping the contactor.

Shipping & Returns

Ships same day on orders placed 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...

$26.00

Frequently Asked Questions

Does this Contactor fit my ICP RGS120HDBB0AAA — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS120HDBB0AAA — 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 RGS120HDBB0AAA — 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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