What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS120HDBA0AAA — 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 RGS120HDBA0AAA — 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 24V Coil for RGS120HDBA0AAA — Ships Today

Name: ICP 2-Pole 30A Contactor 24V Coil for RGS120HDBA0AAA — 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 (ICP part 1178074) is the main switching relay for the ICP/Heil/Tempstar RGS120HDBA0AAA. When the thermostat or control board sends 24 volts to the coil, the contactor's electromagnet pulls the contacts closed and energizes the compressor and condenser fan motor with line voltage. Contactors are high-cycle components: over time the contacts arc, pit, and weld, while the coil can burn open or hum. A failed contactor leaves the outdoor unit dead, or worse, welds shut and runs the compressor continuously. This OEM 30A 2-pole replacement restores reliable, correctly-rated switching with the proper 24V coil pull-in.

Specifications

Spec	Value
OEM Part Number	1178074
Type	Definite Purpose Contactor
Poles	2 (double-pole)
Contact Rating	30 Amps
Coil Voltage	24V
Brand	ICP / Heil / Tempstar
Fitment	OEM direct replacement

Compatibility

Direct OEM replacement for the contactor in the ICP/Heil/Tempstar RGS120HDBA0AAA and other ICP-family units using a 2-pole 30A contactor with a 24V coil. Match poles (2), amp rating (30A), and coil voltage (24V) to your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker. Verify zero voltage on the line terminals with a multimeter before touching anything.
Access — Remove the unit's electrical access panel.
Document — Photograph every line, load, and coil wire on the old contactor 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, reconnect each wire to the matching terminal per your photo, and confirm the 24V coil leads land on the coil terminals.
Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly and the compressor and fan energize.

Signs You Need a Replacement

Outdoor unit is dead — no compressor or fan — even with a cooling call.
Loud buzzing, humming, or chattering from the contactor.
Burnt, pitted, or melted contacts, or a coil that won't pull in.
Contacts welded closed so the compressor runs continuously.

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 24V Coi...

$41.60

Frequently Asked Questions

Does this Contactor fit my ICP RGS120HDBA0AAA — Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS120HDBA0AAA — 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 RGS120HDBA0AAA — 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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