What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS243LTAA0AAAA — 24V Coil 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 RGS243LTAA0AAAA — 24V Coil 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 Contactor for RGS243LTAA0AAAA — 24V Coil OEM #1171554 | Ships Today

Name: ICP 2-Pole 30A Contactor for RGS243LTAA0AAAA — 24V Coil OEM #1171554 | Ships Today
Brand: ICP
SKU: 1171554-GEN
Price: 32.95 USD
Availability: InStock

SKU: 1171554-GEN Brand: ICP

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Overview

This OEM 2-pole, 30-amp definite purpose contactor with a 24-volt coil (part #1171554) is the switching relay that energizes the compressor and condenser fan motor on your ICP Tempstar Heil RGS243LTAA0AAAA system. When the 24V control circuit calls for cooling, the coil pulls the contacts closed to deliver line voltage to the outdoor unit. The contacts carry high current and arc with every cycle, so they pit, burn, and weld over time. Common failure symptoms include an outdoor unit that won't start, a chattering or buzzing contactor, contacts that stick closed and keep the compressor running, and visible pitting or burning on the contact points.

Specifications

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

Compatibility

Factory-correct replacement for the ICP Tempstar Heil RGS243LTAA0AAAA system and related ICP-family units using a 2-pole 30A 24V contactor. Confirm OEM part number 1171554, pole count, amp rating, and 24V coil before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker. Verify zero voltage with a multimeter.
Access — Remove the condensing unit's electrical access panel.
Document — Photograph all line, load, and 24V coil wiring before disconnecting.
Remove — Transfer one wire at a time, or label and disconnect all leads, then unscrew the old contactor from the bracket.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test — Restore power and confirm the contactor pulls in on a cooling call and the compressor and fan start.

Signs You Need a Replacement

Outdoor unit will not start on a cooling call
Loud chattering or buzzing from the contactor
Contacts welded closed so the compressor won't shut off
Visible pitting, burning, or corrosion on the contact points

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 for RGS...

$32.95

Frequently Asked Questions

Does this Contactor fit my ICP RGS243LTAA0AAAA — 24V Coil OEM #1171554 | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS243LTAA0AAAA — 24V Coil 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 RGS243LTAA0AAAA — 24V Coil 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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