What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS300STAA0AAAA — OEM 1171554 | 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 RGS300STAA0AAAA — OEM 1171554 | 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 24V Contactor for RGS300STAA0AAAA — OEM 1171554 | Ships Today

Name: ICP 2-Pole 30A 24V Contactor for RGS300STAA0AAAA — OEM 1171554 | Ships Today
Brand: ICP
SKU: 1171554
Price: 37.64 USD
Availability: InStock

SKU: 1171554 Brand: ICP

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Overview

This genuine OEM 2-pole, 30-amp definite purpose contactor, ICP part number 1171554, uses a 24V coil to switch line-voltage power to the compressor and condenser fan motor. When the thermostat calls for cooling, the 24VAC control signal energizes the contactor coil, pulling the two main contacts closed and sending high-voltage power to the outdoor unit. Contactors are one of the most common HVAC failure points because their contacts arc and erode with every cycle. A 30A 2-pole contactor that has pitted, welded, or burned contacts will cause hard starting, chattering, a humming outdoor unit that won't run, or a compressor that won't shut off. Replacing a worn contactor proactively prevents nuisance no-cool calls and protects the more expensive compressor downstream.

Specifications

Spec	Value
Part Number	1171554
Type	Definite Purpose Contactor
Brand	ICP (Tempstar / Heil / Comfortmaker)
Contact Rating	30 Amps
Poles	2 (2-Pole)
Coil Voltage	24 VAC
Fit	OEM Direct Replacement

Compatibility

Direct fit for ICP / Tempstar / Heil / Comfortmaker model RGS300STAA0AAAA and other systems calling out part 1171554 or an equivalent 2-pole 30A 24V contactor. Confirm pole count, amp rating, and 24V coil against your existing part before ordering.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter at the contactor line terminals.
Access — Remove the unit's electrical access panel.
Document — Photograph all line, load, and 24V coil wiring before disconnecting.
Remove — Transfer wires one at a time, or label each, then unfasten the old contactor.
Install — Mount the new 2-pole contactor and reconnect every wire exactly per your photo, confirming the 24V coil terminals.
Test — Restore power and run a cooling cycle; confirm the contactor pulls in cleanly and the compressor and fan energize.

Signs You Need a Replacement

Outdoor unit hums but compressor and fan won't start
Pitted, blackened, or welded contacts
Buzzing or chattering from the contactor
System won't shut off when the thermostat is satisfied

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day returns on unused parts. 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 24V Contactor for...

$37.64

Frequently Asked Questions

Does this Contactor fit my ICP RGS300STAA0AAAA — OEM 1171554 | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS300STAA0AAAA — OEM 1171554 | 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 RGS300STAA0AAAA — OEM 1171554 | 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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