What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS091HSCB0AAA — OEM 1178211 | 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 RGS091HSCB0AAA — OEM 1178211 | 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 40A 24V Contactor for RGS091HSCB0AAA — OEM 1178211 | Ships Today

Name: ICP 2-Pole 40A 24V Contactor for RGS091HSCB0AAA — OEM 1178211 | Ships Today
Brand: ICP
SKU: 1178211-GEN
Price: 28.95 USD
Availability: InStock

SKU: 1178211-GEN Brand: ICP

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Overview

This OEM 2-pole, 40-amp contactor with a 24-volt coil (part number 1178211) is the switching relay that powers the compressor and condenser fan in the ICP / Heil / Tempstar RGS091HSCB0AAA system. When the thermostat calls for cooling, the 24V control signal energizes the coil, pulling the contacts closed to send line voltage to the compressor. Over time the silver contacts pit, burn, and weld from repeated high-current arcing, and the coil can fail open. A bad contactor is a leading cause of a unit that hums but won't start, or one that won't shut off. Replacing it with this OEM-spec 40A double-pole contactor restores clean, reliable switching.

Specifications

Spec	Value
Part Number	1178211
Type	Definite Purpose Contactor, 2-Pole
Brand	ICP / Heil / Tempstar
Contact Rating	40 Amps
Coil Voltage	24V
Poles	2
Fits Model	RGS091HSCB0AAA
Fit	OEM Replacement

Compatibility

Designed for the ICP / Heil / Tempstar / Comfortmaker RGS091HSCB0AAA and related systems that use OEM 2-pole 40A 24V contactor 1178211. Confirm pole count, amp rating, and 24V coil match your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power at the unit disconnect and breaker. Verify zero voltage with a multimeter at the contactor terminals.
Access — Remove the control-compartment service panel.
Document — Photograph every wire on the line, load, and coil terminals before disconnecting.
Remove — Transfer wires one at a time or label them, unscrew the old contactor from the bracket, and remove it.
Install — Mount the new contactor, reconnect line, load, and 24V coil leads exactly per your photo.
Test — Restore power, call for cooling, and confirm the contactor pulls in and the compressor and fan start.

Signs You Need a Replacement

Unit hums or buzzes but the compressor won't start.
Pitted, burned, or welded contacts that stick closed.
Chattering contactor or a coil that won't pull the contacts in.
System won't shut off when 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 40A 24V Contactor for...

$28.95

Frequently Asked Questions

Does this Contactor fit my ICP RGS091HSCB0AAA — OEM 1178211 | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS091HSCB0AAA — OEM 1178211 | 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 RGS091HSCB0AAA — OEM 1178211 | 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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