What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS150LDBA0AGAA — 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 RGS150LDBA0AGAA — 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 RGS150LDBA0AGAA — 30A & 40A 24V Coil | Ships Today

Name: ICP 2-Pole Contactor for RGS150LDBA0AGAA — 30A & 40A 24V Coil | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 34.00 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This is the genuine OEM 2-pole definite-purpose contactor for the ICP / Tempstar / Heil RGS150LDBA0AGAA, available as the 30-amp (part 1178074) and 40-amp (part 1178211) version, both with a 24-volt coil. The contactor is the high-voltage switch that the thermostat energizes to power the compressor and condenser fan. When the 24V coil pulls in, the contacts close and send line voltage to the outdoor unit. Pitted, welded, or chattering contacts are one of the most common no-cool failures — they cause buzzing, intermittent operation, a compressor that won't start, or contacts that stick closed and keep the unit running. Replacing the contactor restores clean, reliable switching.

Specifications

Spec	Value
Part Numbers	1178074 (30A), 1178211 (40A)
Type	Definite-Purpose Contactor
Poles	2-Pole
Contact Rating	30A / 40A
Coil Voltage	24V
Brand	ICP / Tempstar / Heil
Fits Model	RGS150LDBA0AGAA

Compatibility

Fits the ICP RGS150LDBA0AGAA and shared-platform Tempstar, Heil, Comfortmaker, and Day & Night units. Select the amperage (30A or 40A) that matches your original contactor; confirm coil voltage is 24V before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect. Verify zero voltage across all terminals with a multimeter.
Access — Remove the condenser control-panel cover to expose the contactor.
Document — Photograph every line, load, and 24V coil wire before disconnecting.
Remove — Transfer wires one at a time or label them, then unscrew the old contactor from its mounting.
Install — Mount the new contactor, reconnect line, load, and 24V coil leads exactly per your photo, and tighten lugs.
Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly with no chatter.

Signs You Need a Replacement

Loud buzzing or humming at the outdoor unit
Compressor and fan won't start, or start intermittently
Pitted, burned, or welded contacts
Unit keeps running 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 Contactor for RGS150L...

$34.00

Frequently Asked Questions

Does this Contactor fit my ICP RGS150LDBA0AGAA — 30A & 40A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS150LDBA0AGAA — 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 RGS150LDBA0AGAA — 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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