What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS180LSAA0AAAA — 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 RGS180LSAA0AAAA — 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 Definite Purpose Contactor 2-Pole 30A 24V Coil for RGS180LSAA0AAAA — Ships Today

Name: ICP Definite Purpose Contactor 2-Pole 30A 24V Coil for RGS180LSAA0AAAA — Ships Today
Brand: ICP
SKU: 1178074
Price: 41.60 USD
Availability: InStock

SKU: 1178074 Brand: ICP

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Overview

This is a genuine OEM 2-pole definite purpose contactor (part number 1178074) for the ICP/Tempstar/Heil RGS180LSAA0AAAA furnace and its matched condensing unit. The contactor is an electromagnetic switch: when the 24-volt coil is energized by the thermostat call, the magnetic field pulls the contacts closed and sends line voltage to the compressor and condenser fan motor. Rated at 30 amps per pole with a 24V coil, it is the workhorse that starts and stops the high-voltage load thousands of times per season. Common failure symptoms include a system that won't start, a loud chattering or humming at the contactor, pitted or welded contacts that keep the compressor running after the thermostat is satisfied, or a burnt-smelling, discolored contactor body.

Specifications

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

Compatibility

Designed for the ICP RGS180LSAA0AAAA and the broader ICP/Heil/Tempstar/Comfortmaker family that shares this 2-pole 30A 24V control specification. Always confirm your existing contactor's pole count, amp rating, and coil voltage before installing.

Installation Guide

Safety First — Disconnect power at the unit's service disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the electrical access panel on the condensing unit or furnace.
Document — Photograph all wiring before disconnecting anything.
Remove — Note the line, load, and 24V coil wire positions, then transfer wires one at a time off the old contactor and unscrew it from its bracket.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test — Restore power, initiate a cooling/heating call, and confirm the contactor pulls in cleanly with no chatter.

Signs You Need a Replacement

System fails to start on a thermostat call.
Loud buzzing, humming, or chattering from the contactor.
Pitted, blackened, or welded contacts (compressor won't shut off).
Visible burning, melting, or a burnt electrical smell.

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 Definite Purpose Contactor 2...

$41.60

Frequently Asked Questions

Does this Contactor fit my ICP RGS180LSAA0AAAA — Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS180LSAA0AAAA — 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 RGS180LSAA0AAAA — 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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