What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS102STBB0AAA — OEM 24V Coil Contactor 1178074 | 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 RGS102STBB0AAA — OEM 24V Coil Contactor 1178074 | 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 RGS102STBB0AAA — OEM 24V Coil Contactor 1178074 | Ships Today

Name: ICP 2-Pole 30A Contactor for RGS102STBB0AAA — OEM 24V Coil Contactor 1178074 | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 29.95 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This OEM 2-pole 30-amp contactor with a 24V coil (part number 1178074) is the switching contactor used in the ICP / Tempstar / Heil RGS102STBB0AAA system. When the thermostat calls and energizes the 24V coil, the contactor closes its two power poles to send line voltage to the compressor and condenser fan. Contactors are a common wear item — the contacts pit, burn, or weld over thousands of cycles, leading to a system that won't start, hard starts, buzzing, or equipment that won't shut off. This genuine factory contactor restores clean, reliable switching.

Specifications

Spec	Value
Part Number	1178074
Type	Definite Purpose Contactor
Poles	2-Pole
Contact Rating	30A
Coil Voltage	24V
Brand	ICP (Tempstar / Heil)
Fitment	OEM Direct Replacement
Model	RGS102STBB0AAA

Compatibility

Factory-specified for the ICP / Tempstar / Heil RGS102STBB0AAA system and shared ICP-family equipment (Comfortmaker, Arcoaire, KeepRite). Confirm 2-pole configuration, 30A rating, and a 24V coil along with part number 1178074 before installing.

Installation Guide

Safety First — Disconnect power at the unit disconnect and breaker, then verify zero voltage across all contactor terminals with a multimeter.
Access — Remove the unit service panel to expose the contactor in the control area.
Document — Photograph every line, load, and 24V coil wire on the contactor before disconnecting.
Remove — Transfer wires one at a time to the new contactor, or remove the old contactor's mounting screws after labeling leads.
Install — Mount the new contactor, connect each lead to match your photos, and torque terminals snug.
Test — Restore power, call for cooling, and confirm the coil pulls in and the compressor and fan energize.

Signs You Need a Replacement

System won't start even though the thermostat is calling
Loud buzzing or chattering from the contactor
Pitted, burnt, or welded contacts — unit won't shut off
Hard starts or intermittent compressor and fan operation

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...

$29.95

Frequently Asked Questions

Does this Contactor fit my ICP RGS102STBB0AAA — OEM 24V Coil Contactor 1178074 | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS102STBB0AAA — OEM 24V Coil Contactor 1178074 | 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 RGS102STBB0AAA — OEM 24V Coil Contactor 1178074 | 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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