What amp contactor do I need for my ICP system?

The correct replacement for ICP model RHS181S0CA0AAAA — 2-Pole 30A / 3-Pole 40A 24V | 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 RHS181S0CA0AAAA — 2-Pole 30A / 3-Pole 40A 24V | 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 Contactor for RHS181S0CA0AAAA — 2-Pole 30A / 3-Pole 40A 24V | Ships Today

Name: ICP Contactor for RHS181S0CA0AAAA — 2-Pole 30A / 3-Pole 40A 24V | Ships Today
Brand: ICP
SKU: 1171554
Price: 37.70 USD
Availability: InStock

SKU: 1171554 Brand: ICP

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Overview

This OEM definite-purpose contactor for the ICP Tempstar Heil RHS181S0CA0AAAA heat pump is available as a 2-pole 30A unit (part number 1171554) or a 3-pole 40A unit (part number 1172449), both with a 24V coil. The contactor is the electrically operated switch that energizes the compressor and condenser fan whenever the thermostat calls. Its contacts carry high current and wear out over time — pitted, welded, or chattering contacts are a leading cause of no-cool / no-heat outdoor failures.

Specifications

Spec	Value
Part Number	1171554 (2P 30A), 1172449 (3P 40A)
Type	Definite Purpose Contactor
Brand	ICP (Tempstar / Heil)
Poles	2-Pole / 3-Pole
Amperage	30A / 40A
Coil Voltage	24V
Application	Compressor + Condenser Fan
Fits Model	RHS181S0CA0AAAA

Compatibility

Direct OEM fit for the ICP Tempstar Heil RHS181S0CA0AAAA condensing unit. Match the pole count, amp rating, and 24V coil to your existing contactor before installing.

Installation Guide

Safety First — Disconnect power, then verify zero voltage with a multimeter across the line terminals.
Access — Remove the outdoor unit's electrical panel cover.
Document — Photograph all line, load, and 24V coil connections before disconnecting.
Remove — Label and remove each wire, unscrew the contactor from its bracket, and lift it out.
Install — Mount the new contactor and reconnect each lead to the matching terminal per your photos.
Test — Restore power and confirm the contactor pulls in and the compressor and fan start.

Signs You Need a Replacement

Pitted, burnt, or welded contacts
Buzzing or chattering when the coil is energized
Compressor and fan fail to start on a thermostat call
Contacts will not pull in despite 24V at the coil

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 Contactor for RHS181S0CA0AAA...

$37.70

Frequently Asked Questions

Does this Contactor fit my ICP RHS181S0CA0AAAA — 2-Pole 30A / 3-Pole 40A 24V | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RHS181S0CA0AAAA — 2-Pole 30A / 3-Pole 40A 24V | 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 RHS181S0CA0AAAA — 2-Pole 30A / 3-Pole 40A 24V | 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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