What amp contactor do I need for my ICP system?

The correct replacement for ICP model RHS120L0CA0AAA — 2-Pole 30A/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 RHS120L0CA0AAA — 2-Pole 30A/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 for RHS120L0CA0AAA — 2-Pole 30A/40A 24V Coil | Ships Today

Name: ICP Contactor for RHS120L0CA0AAA — 2-Pole 30A/40A 24V Coil | Ships Today
Brand: ICP
SKU: 1178074
Price: 38.94 USD
Availability: InStock

SKU: 1178074 Brand: ICP

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Overview

This is a genuine OEM 2-pole definite-purpose contactor for the ICP/Heil/Tempstar RHS120L0CA0AAA heat pump. The contactor is the high-voltage relay that energizes the compressor and outdoor condenser fan motor whenever the thermostat calls for cooling or heating. When the 24V control signal reaches the coil, the magnetic core pulls the contacts closed and line voltage flows to the compressor. This package covers the two factory part numbers for this model — 1178074 (2-pole, 30A) and 1178211 (2-pole, 40A) — both with a 24-volt coil. A failing contactor is one of the most common no-cool service calls: pitted or welded contacts, a chattering coil, or a burned-out coil winding will leave the outdoor unit dead while the indoor blower still runs.

Specifications

Spec	Value
OEM Part Numbers	1178074 (30A), 1178211 (40A)
Type	Definite-purpose contactor
Brand	ICP / Heil / Tempstar / Comfortmaker
Poles	2-pole
Contact Rating	30A / 40A
Coil Voltage	24 VAC
Fits Model	RHS120L0CA0AAA

Compatibility

Direct-fit replacement for the ICP/Heil/Tempstar/Comfortmaker RHS120L0CA0AAA heat pump and other RHS-series outdoor units that originally shipped with the 1178074 or 1178211 contactor. Always match the amperage and 24V coil rating to your original part before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the outdoor unit's electrical access panel.
Document — Photograph all line- and low-voltage wiring before disconnecting anything.
Remove — Label and disconnect the line, load, and 24V coil leads, then unbolt the old contactor from the bracket.
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 and the compressor and fan energize.

Signs You Need a Replacement

Outdoor unit won't start but the indoor blower runs.
Loud humming or buzzing from the contactor.
Visibly pitted, burned, or welded contacts.
Compressor short-cycles or chatters on and off.

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 RHS120L0CA0AAA...

$38.94

Frequently Asked Questions

Does this Contactor fit my ICP RHS120L0CA0AAA — 2-Pole 30A/40A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RHS120L0CA0AAA — 2-Pole 30A/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 RHS120L0CA0AAA — 2-Pole 30A/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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