What amp contactor do I need for my ICP system?

The correct replacement for ICP model RGS121SEAB0AAAA — 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 RGS121SEAB0AAAA — 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 30A Contactor for RGS121SEAB0AAAA — 24V Coil | Ships Today

Name: ICP 2-Pole 30A Contactor for RGS121SEAB0AAAA — 24V Coil | Ships Today
Brand: ICP
SKU: 1178074
Price: 44.20 USD
Availability: InStock

SKU: 1178074 Brand: ICP

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This OEM 2-pole, 30-amp contactor (part #1178074) with a 24V control coil handles the high-current load switching in the ICP / Tempstar / Heil RGS121SEAB0AAAA system. When the low-voltage control energizes the 24V coil, the contactor pulls in and closes its two poles to power the connected load. Contactors are a high-wear item — the contacts arc every time they open and close, and over thousands of cycles they pit, weld, or chatter. A failing contactor causes hard starts, buzzing, or a unit that won't run at all. This OEM-spec replacement restores clean, reliable switching.

Specifications

Spec	Value
Part Number	1178074
Type	Definite Purpose Contactor
Poles	2 (Double-Pole)
Contact Rating	30A
Coil Voltage	24V
Brand	ICP / Tempstar / Heil
Fitment	OEM Replacement

Compatibility

Built for the ICP-family RGS121SEAB0AAAA unit sold as Tempstar, Heil and Comfortmaker. Confirm pole count, amp rating, and 24V coil against your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker; verify zero voltage with a multimeter.
Access — Remove the electrical compartment service panel.
Document — Photograph all line, load, and 24V coil wire positions before disconnecting.
Remove — Label and remove the wires, then unscrew the old contactor from its mount.
Install — Mount the new contactor and reconnect each wire exactly per your photo, torquing terminals snugly.
Test — Restore power and confirm the contactor pulls in cleanly with no chatter and the load energizes.

Signs You Need a Replacement

Loud buzzing or chattering when the unit calls to run
Pitted, blackened, or welded contacts
Unit fails to start or starts intermittently
Coil clicks but contacts don't fully close

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...

$44.20

Frequently Asked Questions

Does this Contactor fit my ICP RGS121SEAB0AAAA — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RGS121SEAB0AAAA — 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 RGS121SEAB0AAAA — 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.

Menu