What amp contactor do I need for my ICP system?

The correct replacement for ICP model RHH120S0CA0AAAA – 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 RHH120S0CA0AAAA – 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 RHH120S0CA0AAAA – 24V Coil | Ships Today

Name: ICP 2-Pole 30A Contactor for RHH120S0CA0AAAA – 24V Coil | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 32.95 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This is the OEM 2-pole, 30-amp contactor (OEM #1178074) for the ICP/Tempstar/Heil RHH120S0CA0AAAA heat pump. The contactor is the high-voltage relay that energizes the compressor and condenser fan motor whenever the 24-volt thermostat circuit calls for cooling or heating. Its coil pulls in at 24V, closing two sets of line-voltage contacts to deliver power to the outdoor unit. When the contacts burn, pit, or weld, you get hard starts, chattering, a humming outdoor unit that won't run, or a system that fails to shut off. A contactor with a failed coil simply will not pull in, leaving the condenser dead while the air handler runs.

Specifications

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

Compatibility

Designed as the factory replacement for the ICP/Tempstar/Heil RHH120S0CA0AAAA. The same 2-pole 30A 24V definite-purpose contactor is used across many ICP-family condensers and heat pumps. Verify your existing contactor's amp rating, pole count, and coil voltage against the specs above before installing.

Installation Guide

Safety First – Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter across the contactor line terminals.
Access – Remove the condenser service panel to expose the contactor.
Document – Photograph every wire and terminal position before disconnecting anything.
Remove – Label and disconnect the line, load, and 24V coil wires, then unscrew the old contactor from its mounting plate.
Install – Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test – Restore power and confirm the contactor pulls in cleanly on a thermostat call with no chatter.

Signs You Need a Replacement

Outdoor unit hums but compressor and fan won't start
Buzzing, chattering, or rapid clicking at the contactor
Visibly burned, pitted, or welded contacts
Condenser won't shut off after the thermostat is satisfied

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 RHH...

$32.95

Frequently Asked Questions

Does this Contactor fit my ICP RHH120S0CA0AAAA – 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RHH120S0CA0AAAA – 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 RHH120S0CA0AAAA – 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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