What amp contactor do I need for my ICP system?

The correct replacement for ICP model RHH090S0BA0AAAA — 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 RHH090S0BA0AAAA — 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 RHH090S0BA0AAAA — 24V Coil | Ships Today

Name: ICP 2-Pole 30A Contactor for RHH090S0BA0AAAA — 24V Coil | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 32.00 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This is a genuine OEM 2-pole definite-purpose contactor (part number 1178074) for the ICP/Tempstar/Heil RHH090S0BA0AAAA heat pump. The contactor is the high-voltage switch that energizes the compressor and condenser fan motor whenever the 24V control circuit calls for cooling or heating. When the thermostat sends 24 volts to the contactor coil, an electromagnet pulls the contacts closed, passing line voltage to the outdoor unit. Rated at 30 amps per pole with a 24V coil, it is built to handle the inrush current of a residential compressor through thousands of switching cycles. A failing contactor is one of the most common no-cool/no-heat outdoor service calls — pitted or welded contacts, a buzzing or chattering coil, or an open coil winding will all prevent the unit from starting reliably.

Specifications

Spec	Value
Part Number	1178074
Type	Definite-Purpose Contactor
Brand	ICP (Tempstar / Heil)
Poles	2-Pole
Rating	30 Amps
Coil Voltage	24V
Fitment	OEM Replacement

Compatibility

Direct-fit OEM replacement for the ICP/Tempstar/Heil RHH090S0BA0AAAA and the closely related RHH090S0AA0AAAA heat pump models. Also serves as the correct replacement on many ICP-family condensers and heat pumps that originally shipped with the 1178074 contactor. Confirm the original part number and coil voltage before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage at the contactor terminals with a multimeter.
Access — Remove the condenser service panel to expose the control compartment.
Document — Photograph all line, load, and 24V coil wiring before disconnecting anything.
Remove — Label and pull the spade connectors, then unscrew the old contactor from its bracket.
Install — Mount the new contactor, reconnect line and load to the matching pole terminals and the 24V leads to the coil per your photo.
Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly with no chatter and the compressor/fan start.

Signs You Need a Replacement

Outdoor unit won't start, but the indoor blower and thermostat work.
Loud buzzing, humming, or chattering from the contactor.
Visibly pitted, burned, or welded-together contacts.
Coil reads open or fails to pull the contacts closed when energized.

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. 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 RHH...

$32.00

Frequently Asked Questions

Does this Contactor fit my ICP RHH090S0BA0AAAA — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RHH090S0BA0AAAA — 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 RHH090S0BA0AAAA — 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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