What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS181HFAA0AGAA — 24V Coil | 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 RGS181HFAA0AGAA — 24V Coil | 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 & 3-Pole 40A Contactor Set for RGS181HFAA0AGAA — 24V Coil | Ships Today

Name: ICP 2-Pole 30A & 3-Pole 40A Contactor Set for RGS181HFAA0AGAA — 24V Coil | Ships Today
Brand: ICP
SKU: 1171554
Price: 45.44 USD
Availability: InStock

SKU: 1171554 Brand: ICP

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This OEM contactor set fits the ICP / Tempstar / Heil RGS181HFAA0AGAA and includes a 2-pole 30-amp contactor (part #1171554) and a 3-pole 40-amp contactor (part #1172449), both with a 24-volt control coil. A contactor is an electrically operated switch that uses the low-voltage 24V signal from the control board or thermostat to close high-voltage contacts and energize the load. Pitted, burned, or chattering contacts are a leading cause of no-start conditions, buzzing, and welded-closed failures that keep equipment running continuously. Fresh OEM contactors restore reliable, clean switching.

Specifications

Spec	Value
OEM Part Numbers	1171554 (2P 30A), 1172449 (3P 40A)
Type	2-Pole & 3-Pole Contactor
Brand	ICP (Tempstar / Heil / Comfortmaker)
Contact Rating	30A (2P) / 40A (3P)
Coil Voltage	24V
Fits Model	RGS181HFAA0AGAA

Compatibility

Direct OEM replacements for the ICP RGS181HFAA0AGAA and shared-platform Tempstar, Heil, and Comfortmaker units calling for a 24V 30A 2-pole or 40A 3-pole contactor. Match pole count, amp rating, and coil voltage to your existing part before installing.

Installation Guide

Safety First — Disconnect all power and verify zero voltage with a multimeter.
Access — Remove the electrical service panel.
Document — Photograph every wire and terminal before disconnecting.
Remove — Label and disconnect the line, load, and 24V coil leads; unbolt the old contactor.
Install — Mount the new contactor and reconnect each wire per your photo.
Test — Restore power and confirm the contactor pulls in cleanly with no chatter.

Signs You Need a Replacement

Buzzing, humming, or chattering at the contactor
Pitted, burned, or melted contacts
Equipment fails to start or won't shut off (welded contacts)
Visible arcing or corrosion on the terminals

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 & 3-Pole 40A Cont...

$45.44

Frequently Asked Questions

Does this Contactor fit my ICP RGS181HFAA0AGAA — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS181HFAA0AGAA — 24V Coil | 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 RGS181HFAA0AGAA — 24V Coil | 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.

Menu