What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS101LTCA0AAA — OEM 1178074 | 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 RGS101LTCA0AAA — OEM 1178074 | 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 24V for RGS101LTCA0AAA — OEM 1178074 | Ships Today

Name: ICP 2-Pole 30A Contactor 24V for RGS101LTCA0AAA — OEM 1178074 | Ships Today
Brand: ICP
SKU: 1178074
Price: 42.84 USD
Availability: InStock

SKU: 1178074 Brand: ICP

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This genuine OEM 2-pole 30-amp definite-purpose contactor (part number 1178074) is the switching relay that controls high-voltage power to the compressor and condenser fan motor in your ICP / Tempstar / Heil RGS101LTCA0AAA system. It uses a 24-volt control coil energized by the thermostat to pull in two sets of line-voltage contacts rated at 30 amps. When the contacts pit, weld, or burn — or when the coil fails — the unit may not start, may chatter, or may run continuously. Replacing a worn contactor is one of the most common and cost-effective HVAC repairs, restoring clean, reliable switching and protecting downstream components from arc damage.

Specifications

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

Compatibility

Direct-fit replacement for the ICP Tempstar Heil RGS101LTCA0AAA. This 30A 2-pole 24V contactor is a widely used switching component across ICP-built units and is interchangeable in many related Tempstar, Heil, Comfortmaker, and Arcoaire models that specify the same rating. Confirm pole count, amperage, and coil voltage against your existing part before installing.

Installation Guide

Safety First — Disconnect power at the unit and the breaker. Verify zero voltage with a multimeter across the contactor terminals.
Access — Remove the service panel on the unit to expose the electrical box.
Document — Photograph all line, load, and coil wires before disconnecting them.
Remove — Transfer wires one at a time, or label them, then unscrew the old contactor from its mounting base.
Install — Mount the new 1178074 contactor, reconnect each wire to its matching terminal per your photo.
Test — Restore power and call for operation; confirm the contactor pulls in cleanly with no chatter.

Signs You Need a Replacement

Compressor or fan will not start on a call
Buzzing, humming, or chattering from the contactor
Visibly pitted, burned, or welded contacts
Unit runs continuously and will not shut off

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 24V for...

$42.84

Frequently Asked Questions

Does this Contactor fit my ICP RGS101LTCA0AAA — OEM 1178074 | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS101LTCA0AAA — OEM 1178074 | 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 RGS101LTCA0AAA — OEM 1178074 | 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.

Menu