What amp contactor do I need for my ICP system?

The correct replacement for ICP model RHS048S0CA0AAA — 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 RHS048S0CA0AAA — 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 RHS048S0CA0AAA — 24V Coil | Ships Today

Name: ICP 2-Pole 30A Contactor for RHS048S0CA0AAA — 24V Coil | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 27.95 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This OEM 2-pole, 30-amp contactor with a 24V coil is the main switching relay for your ICP RHS048S0CA0AAA heat pump. When the thermostat calls for cooling, the 24V coil pulls the contacts closed and sends line voltage to the compressor and condenser fan motor. Over years of cycling, the contacts pit, burn, and weld, and the coil can open. Symptoms of a failing contactor include a loud hum or chatter from the unit, contacts that stick closed so the compressor never shuts off, or contacts that won't close at all so the outdoor unit stays dead while the indoor blower runs.

Specifications

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

Compatibility

Direct OEM replacement for the ICP / Tempstar / Heil RHS048S0CA0AAA 4-ton heat pump and other RHS-series condensing units using a 2-pole 30A definite-purpose contactor with a 24V coil. Confirm pole count, amp rating, and coil voltage against the original.

Installation Guide

Safety First — Disconnect power at the breaker and disconnect, then verify zero voltage at the contactor with a multimeter.
Access — Remove the condenser service panel.
Document — Photograph every line, load, and coil connection before disconnecting.
Remove — Move wires one at a time to the new contactor, then unbolt the old one.
Install — Mount the new contactor and reconnect each wire to its matching terminal per your photo.
Test — Restore power and confirm the contactor pulls in cleanly on a cooling call and the compressor and fan start.

Signs You Need a Replacement

Loud humming, buzzing, or chattering from the outdoor unit
Burned, pitted, or welded contacts
Compressor won't shut off (contacts stuck closed)
Outdoor unit dead while the indoor blower runs (coil open)

Shipping & Returns

Ships same day on orders placed 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 RHS...

$27.95

Frequently Asked Questions

Does this Contactor fit my ICP RHS048S0CA0AAA — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RHS048S0CA0AAA — 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 RHS048S0CA0AAA — 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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