What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS180HFEA0AAAA — OEM 1178074 / 1178211 | 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 RGS180HFEA0AAAA — OEM 1178074 / 1178211 | 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 Contactor 30A / 40A 24V for RGS180HFEA0AAAA — OEM 1178074 / 1178211 | Ships Today

Name: ICP 2-Pole Contactor 30A / 40A 24V for RGS180HFEA0AAAA — OEM 1178074 / 1178211 | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 36.95 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This OEM 2-pole definite purpose contactor fits the ICP / Tempstar / Heil RGS180HFEA0AAAA and is available in 30-amp (part 1178074) and 40-amp (part 1178211) ratings with a 24-volt control coil. The contactor is the electromechanical switch that energizes the compressor and condenser fan when the thermostat calls. When the 24V coil pulls in, the two poles close and pass line voltage to the load. Pitted or welded contacts, a burned coil, or a chattering armature are the most common contactor failures and cause no-cool calls, hard starts, or a compressor that won't shut off. Replacing with the correct OEM-rated contactor restores reliable switching.

Specifications

Spec	Value
Part Numbers	1178074 (30A), 1178211 (40A)
Type	2-Pole Definite Purpose Contactor
Poles	2
Coil Voltage	24V
Current Rating	30A / 40A
Brand	ICP / Tempstar / Heil
Fitment	OEM Exact-Fit

Compatibility

Fits the ICP / Tempstar / Heil RGS180HFEA0AAAA. Match the amp rating (30A vs 40A) and confirm the 24V coil against your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power and verify zero voltage with a multimeter.
Access — Remove the electrical / control access panel.
Document — Photograph every line, load, and 24V coil wire before disconnecting.
Remove — Transfer wires one at a time or label them, then unbolt the old contactor.
Install — Mount the new contactor and reconnect each wire exactly per your photo.
Test — Restore power, initiate a cooling call, and verify the contacts pull in and the compressor/fan energize.

Signs You Need a Replacement

Pitted, burned, or welded contacts
Buzzing or chattering when energized
Compressor that won't start or won't stop
No 24V coil pull-in despite a thermostat call

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 Contactor 30A / 40A 2...

$36.95

Frequently Asked Questions

Does this Contactor fit my ICP RGS180HFEA0AAAA — OEM 1178074 / 1178211 | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS180HFEA0AAAA — OEM 1178074 / 1178211 | 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 RGS180HFEA0AAAA — OEM 1178074 / 1178211 | 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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