What amp contactor do I need for my ICP system?

The correct replacement for ICP model RHS120H0CB0AAA — 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 RHS120H0CB0AAA — 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 RHS120H0CB0AAA — 24V Coil | Ships Today

Name: ICP 2-Pole 30A Contactor for RHS120H0CB0AAA — 24V Coil | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 26.95 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This is the genuine OEM 2-pole definite-purpose contactor with a 24-volt coil (Part No. 1178074, "CONTACTOR 2P 30A 24V") for the ICP/Tempstar/Heil RHS120H0CB0AAA heat pump. The contactor is the high-voltage switch that energizes the compressor and outdoor fan motor when the 24V control signal calls for operation. A 40-amp version (Part No. 1178211, "CONTACTOR 2P 40A 24V") is also used on this platform. Contactors fail from arcing, pitted or welded contacts, and burned coils — a failed contactor leaves the outdoor unit dead, buzzing, or chattering on a call for cool or heat.

Specifications

Spec	Value
Part Number	1178074 (30A)
Alternate	1178211 (40A)
Type	2-pole definite purpose contactor
Coil Voltage	24 VAC
Contact Rating	30A (40A option)
Poles	2
Brand	ICP / Tempstar / Heil
Fits Model	RHS120H0CB0AAA
Fitment	OEM direct replacement

Compatibility

Fits the ICP RHS120H0CB0AAA heat pump and shared ICP/Tempstar/Heil/Comfortmaker condensing units. Match the amp rating (30A or 40A) to your original contactor; the higher-rated unit is an acceptable upgrade as long as the footprint and 24V coil match.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.
Access — Remove the electrical access panel on the condensing unit.
Document — Photograph all line, load, and 24V coil wiring before disconnecting.
Remove — Transfer one wire at a time or label leads, then unscrew and remove the old contactor.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test — Restore power, place a call for cooling/heating, and confirm the contactor pulls in cleanly with no chatter.

Signs You Need a Replacement

Outdoor unit hums or buzzes but won't start
Contactor chatters or pulls in intermittently
Pitted, burned, or welded contacts
Compressor and fan run continuously (stuck closed)

Shipping & Returns

Ships same day on orders placed 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...

$26.95

Frequently Asked Questions

Does this Contactor fit my ICP RHS120H0CB0AAA — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RHS120H0CB0AAA — 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 RHS120H0CB0AAA — 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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