What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS150HFCA0AAAA — 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 RGS150HFCA0AAAA — 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 2-Pole Contactor for RGS150HFCA0AAAA — 30A & 40A 24V Coil | Ships Today

Name: ICP 2-Pole Contactor for RGS150HFCA0AAAA — 30A & 40A 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 OEM 2-pole definite-purpose contactor switches line voltage to the compressor and condenser fan motor on ICP/Tempstar/Heil RGS150HFCA0AAAA units. Available in 30 amp (part 1178074) and 40 amp (part 1178211) ratings, both with a 24V control coil. When the thermostat calls for cooling, 24 volts energizes the coil and pulls the contacts closed, sending power to the compressor. Pitted, burned, or chattering contacts cause hard starts, intermittent cooling, buzzing, or a complete no-start condition. Replacing a worn contactor restores reliable switching and protects the compressor from low-voltage and arcing damage.

Specifications

Spec	Value
Part Numbers	1178074 (30A), 1178211 (40A)
Type	2-Pole Definite Purpose Contactor
Brand	ICP (Tempstar / Heil)
Poles	2
Contact Rating	30A / 40A
Coil Voltage	24V
Fitment	OEM — direct replacement

Compatibility

Fits the ICP RGS150HFCA0AAAA and related RGS150-series condensing units. Verify whether your unit was originally equipped with the 30A or 40A version and match the coil voltage (24V) to your control circuit.

Installation Guide

Safety First — Disconnect power and verify zero voltage with a multimeter.
Access — Remove the control/service panel to expose the contactor.
Document — Photograph every wire and terminal before disconnecting.
Remove — Label and transfer the line, load, and 24V coil leads one at a time; unbolt the old contactor.
Install — Mount the new contactor, reconnect each wire per your photo to the matching terminal.
Test — Restore power, call for cooling, and confirm the contacts pull in cleanly with no chatter.

Signs You Need a Replacement

Buzzing or chattering from the contactor
Compressor won't start or starts intermittently
Visibly pitted, burned, or welded contacts
Coil energizes but contacts fail to close

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 Contactor for RGS150H...

$26.95

Frequently Asked Questions

Does this Contactor fit my ICP RGS150HFCA0AAAA — 30A & 40A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS150HFCA0AAAA — 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 RGS150HFCA0AAAA — 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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