What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS180HTCA0AAAA — 30A/40A 24V Coil OEM | 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 RGS180HTCA0AAAA — 30A/40A 24V Coil OEM | 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 RGS180HTCA0AAAA — 30A/40A 24V Coil OEM | Ships Today

Name: ICP 2-Pole Contactor for RGS180HTCA0AAAA — 30A/40A 24V Coil OEM | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 38.00 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This OEM 2-pole contactor is the heavy-duty switching relay that controls line-voltage power to the compressor and condenser fan in the ICP Tempstar Heil RGS180HTCA0AAAA system. Two amperage ratings are available: 30 amp (part number 1178074) and 40 amp (part number 1178211), both with a 24V control coil. When the thermostat calls for cooling, the 24-volt coil pulls the contacts closed, energizing the compressor and fan motor. Over time the contacts pit, burn, and weld from the high inrush current of every start, causing hard starts, buzzing, or a compressor that won't run. Replacing a worn contactor restores clean, reliable switching. Choose the rating that matches your existing contactor.

Specifications

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

Compatibility

Factory-original 2-pole contactor for the ICP Tempstar Heil RGS180HTCA0AAAA system. Match the amperage (30A or 40A) and confirm the 24V coil rating against your existing contactor before ordering — an undersized contactor will fail prematurely.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the unit's electrical access panel.
Document — Photograph every line, load, and 24V coil wire before disconnecting.
Remove — Disconnect the wiring, unscrew the contactor from its mount, and lift it out.
Install — Mount the new contactor, then reconnect each wire exactly as photographed, matching line/load and coil terminals.
Test — Restore power, call for cooling, and confirm the contacts pull in and the compressor and fan energize.

Signs You Need a Replacement

Compressor or condenser fan won't start or runs intermittently.
Loud buzzing, humming, or chattering from the contactor.
Visibly pitted, burned, or welded contacts.
Contacts fail to pull in when the 24V coil is energized.

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 RGS180H...

$38.00

Frequently Asked Questions

Does this Contactor fit my ICP RGS180HTCA0AAAA — 30A/40A 24V Coil OEM | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS180HTCA0AAAA — 30A/40A 24V Coil OEM | 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 RGS180HTCA0AAAA — 30A/40A 24V Coil OEM | 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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