What amp contactor do I need for my ICP system?

The correct replacement for ICP model RHS181H0BA0AAAA — 2-Pole 30A & 3-Pole 40A 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 RHS181H0BA0AAAA — 2-Pole 30A & 3-Pole 40A 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 Contactor Set for RHS181H0BA0AAAA — 2-Pole 30A & 3-Pole 40A 24V Coil | Ships Today

Name: ICP Contactor Set for RHS181H0BA0AAAA — 2-Pole 30A & 3-Pole 40A 24V Coil | Ships Today
Brand: ICP
SKU: 1171554
Price: 58.44 USD
Availability: InStock

SKU: 1171554 Brand: ICP

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Overview

This OEM contactor set switches high-voltage power to the compressor and condenser fan of your ICP Tempstar/Heil RHS181H0BA0AAAA heat pump. It includes a 2-pole 30-amp contactor (1171554) and a 3-pole 40-amp contactor (1172449), both with 24V control coils. When the thermostat calls for cooling or heating, the 24V coil energizes and the contactor pulls in to deliver line voltage to the compressor. Pitted, welded, or chattering contacts are a leading cause of no-cool/no-heat service calls — symptoms include a buzzing condenser that won't start, a compressor that won't shut off, or visibly burnt contact points.

Specifications

Spec	Value
OEM Part Numbers	1171554, 1172449
Type	Definite-purpose contactor set
Brand	ICP (Tempstar / Heil)
Poles	2-pole and 3-pole
Amp Rating	30A (2P) / 40A (3P)
Coil Voltage	24V

Compatibility

Direct OEM replacement for the ICP Tempstar/Heil RHS181H0BA0AAAA heat pump and matching RHS181 series condensing units using 24V-coil contactors.

Installation Guide

Safety First — Disconnect power and verify zero voltage with a multimeter.
Access — Remove the condensing-unit electrical access panel.
Document — Photograph all line and load wires before disconnecting.
Remove — Move each wire to the new contactor one terminal at a time, then unbolt the old contactor.
Install — Mount the new contactor and reconnect every lead per your photo.
Test — Restore power and confirm clean pull-in with no chatter on a thermostat call.

Signs You Need a Replacement

Buzzing or humming contactor that won't pull in
Burnt, pitted, or welded contact points
Compressor that won't shut off
Intermittent or no condenser 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 Contactor Set for RHS181H0BA...

$58.44

Frequently Asked Questions

Does this Contactor fit my ICP RHS181H0BA0AAAA — 2-Pole 30A & 3-Pole 40A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RHS181H0BA0AAAA — 2-Pole 30A & 3-Pole 40A 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 RHS181H0BA0AAAA — 2-Pole 30A & 3-Pole 40A 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.

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