What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS150HTCB0AAAA — 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 RGS150HTCB0AAAA — 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 RGS150HTCB0AAAA — 30A/40A 24V Coil | Ships Today

Name: ICP 2-Pole Contactor for RGS150HTCB0AAAA — 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 OEM 2-pole definite-purpose contactor for the ICP / Tempstar / Heil RGS150HTCB0AAAA is offered in two current ratings: 30 amp (part 1178074) and 40 amp (part 1178211), both with a 24-volt control coil. The contactor is the high-voltage switch that powers the compressor and condenser fan motor. When the thermostat calls for cooling, 24V from the control circuit energizes the coil, pulling the contacts closed to deliver line voltage to the outdoor unit. Because the contacts make and break under load thousands of times per season, they are a frequent wear item — they pit, corrode, weld, or chatter over time. A failed contactor is a leading cause of an outdoor unit that won't start, a humming/buzzing condenser, or a compressor and fan that won't shut off. Select the rating that matches your existing contactor.

Specifications

Spec	Value
Part Number (30A)	1178074 — Contactor 2P 30A 24V
Part Number (40A)	1178211 — Contactor 2P 40A 24V
Poles	2-Pole
Contact Rating	30A or 40A
Coil Voltage	24V
Brand	ICP (Tempstar / Heil)
Fitment	OEM direct replacement

Compatibility

Fits the ICP / Tempstar / Heil RGS150HTCB0AAAA and related units originally equipped with a 2-pole, 24V-coil contactor. Match the amp rating (30A or 40A) and confirm a 24V coil on your existing part before ordering.

Installation Guide

Safety First — Disconnect power at the unit and breaker, then verify zero voltage with a multimeter.
Access — Remove the outdoor unit's electrical access panel to expose the contactor.
Document — Photograph all line, load, and 24V coil connections before disconnecting anything.
Remove — Transfer wires one at a time, or label them, then unscrew the old contactor from its mount.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photos.
Test — Restore power, call for cooling, and confirm the contacts pull in and the compressor/fan energize cleanly.

Signs You Need a Replacement

Outdoor unit won't start on a cooling call.
Loud humming, buzzing, or chattering at the contactor.
Pitted, burned, or welded contacts.
Compressor and fan continue running after the call ends.

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. 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...

$34.00

Frequently Asked Questions

Does this Contactor fit my ICP RGS150HTCB0AAAA — 30A/40A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS150HTCB0AAAA — 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 RGS150HTCB0AAAA — 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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