What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS120SFAB0AAA - OEM Definite Purpose Contactor | 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 RGS120SFAB0AAA - OEM Definite Purpose Contactor | 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 RGS120SFAB0AAA - OEM Definite Purpose Contactor | Ships Today

Name: ICP 2-Pole 30A 24V Contactor for RGS120SFAB0AAA - OEM Definite Purpose Contactor | Ships Today
Brand: ICP
SKU: 1178074
Price: 41.60 USD
Availability: InStock

SKU: 1178074 Brand: ICP

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Overview

This OEM 2-pole, 30-amp contactor with a 24-volt coil (Part No. 1178074) is the electrical switch that energizes the high-voltage load on the ICP / Tempstar / Heil RGS120SFAB0AAA. When the control board or thermostat sends 24V to the coil, the contactor pulls in and closes its two power poles, sending line voltage to the motor or compressor circuit. Contactors are high-wear components: their contacts arc every time they open and close, and over thousands of cycles they pit, burn, and weld. A failing contactor shows up as chattering, a unit that won't start, or contacts that stick closed and keep the load running. Replacing it with the correct OEM 30A / 24V part restores clean switching and protects the downstream motor windings.

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
Fit	OEM Replacement

Compatibility

Fits the ICP / Tempstar / Heil RGS120SFAB0AAA and other ICP-family systems calling for a 2-pole, 30-amp definite-purpose contactor with a 24V coil. Match OEM part number 1178074 and confirm coil voltage and amp rating before installing.

Installation Guide

Safety First - Disconnect power at the breaker and service disconnect, then verify zero voltage across the contactor terminals with a multimeter.
Access - Remove the electrical/control panel cover to reach the contactor.
Document - Photograph all line, load, and 24V coil wiring before disconnecting.
Remove - Label and remove the wires, then unbolt the old contactor from its base.
Install - Mount the new contactor and reconnect each wire to its matching terminal per your photo.
Test - Restore power, call for operation, and confirm the contactor pulls in cleanly and the load energizes without chatter.

Signs You Need a Replacement

Buzzing or chattering when the contactor tries to pull in
Pitted, burned, or welded contacts
Unit fails to start even with a good 24V coil signal
Contacts stick closed, keeping the load running after the call ends

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...

$41.60

Frequently Asked Questions

Does this Contactor fit my ICP RGS120SFAB0AAA - OEM Definite Purpose Contactor | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS120SFAB0AAA - OEM Definite Purpose Contactor | 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 RGS120SFAB0AAA - OEM Definite Purpose Contactor | 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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