What amp contactor do I need for my ICP system?

The correct replacement for ICP model RHS181H0AA0AAAA — 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 RHS181H0AA0AAAA — 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 Contactor for RHS181H0AA0AAAA — 24V Coil | Ships Today

Name: ICP 2-Pole 30A Contactor for RHS181H0AA0AAAA — 24V Coil | Ships Today
Brand: ICP
SKU: 1171554-GEN
Price: 32.00 USD
Availability: InStock

SKU: 1171554-GEN Brand: ICP

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Overview

This OEM definite purpose contactor is the electrical switch that energizes the compressor and condenser fan motor in your ICP RHS181H0AA0AAAA heat pump. When the thermostat calls for cooling or heating, the 24V control circuit energizes the contactor coil, pulling the 2-pole, 30-amp contacts closed and sending line voltage to the outdoor unit. Rated at 30A per pole with a 24-volt coil, it is built to handle the inrush current of compressor start-up cycle after cycle. Over time the silver contacts pit, burn, and weld from arcing, while ants, dirt, and corrosion can lodge under the contacts. Common failure symptoms include a buzzing or chattering outdoor unit, a compressor that hums but won't start, a condenser fan that runs continuously, or an outdoor unit that is completely dead while the indoor blower still runs. Replacing this inexpensive part is one of the most common HVAC service repairs.

Specifications

Spec	Value
Primary Part Number	1171554
Alternate Part Number	1172449 (3-Pole 40A)
Type	Definite Purpose Contactor
Brand	ICP (Heil / Tempstar)
Poles	2-Pole
Contact Rating	30 Amps
Coil Voltage	24 VAC
Fit	OEM Direct Replacement

Compatibility

Engineered as a direct OEM fit for the ICP / Heil / Tempstar / Comfortmaker RHS181H0AA0AAAA heat pump condensing unit. ICP shares contactor platforms across many RHS, NHP, and HSS series outdoor units, so this 2-pole 30A 24V contactor is also a frequent replacement across comparable single-stage condensers. Verify your existing contactor is 2-pole with a 24V coil before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter across the line terminals.
Access — Remove the condenser unit's electrical access panel.
Document — Photograph all wire connections before disconnecting anything.
Remove — Note line (L1/L2), load (T1/T2), and 24V coil wire positions, then transfer wires one at a time or unbolt the old contactor.
Install — Mount the new contactor and reconnect each wire exactly per your photo.
Test — Restore power, call for cooling, and confirm the contacts pull in cleanly with no chatter.

Signs You Need a Replacement

Loud buzzing, humming, or chattering from the outdoor unit
Compressor and fan won't start even though the thermostat is calling
Visibly burnt, pitted, or welded contacts
Condenser fan runs nonstop or unit stays energized after the call ends

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 Contactor for RHS...

$32.00

Frequently Asked Questions

Does this Contactor fit my ICP RHS181H0AA0AAAA — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RHS181H0AA0AAAA — 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 RHS181H0AA0AAAA — 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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