What amp contactor do I need for my ICP system?

The correct replacement for ICP model RHS048L0BA0AAAA — 24V Coil OEM 1178074 | 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 RHS048L0BA0AAAA — 24V Coil OEM 1178074 | 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 RHS048L0BA0AAAA — 24V Coil OEM 1178074 | Ships Today

Name: ICP 2-Pole 30A Contactor for RHS048L0BA0AAAA — 24V Coil OEM 1178074 | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 32.00 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This is the OEM 2-pole, 30-amp definite-purpose contactor with a 24-volt coil (factory part number 1178074) for the ICP / Tempstar / Heil RHS048L0BA0AAAA 4-ton heat pump. The contactor is the high-voltage switch that energizes the compressor and condenser fan whenever the thermostat calls for cooling or heat-pump operation. Its 24V coil is pulled in by the low-voltage control circuit, closing the line-voltage contacts. Pitted, burned, or chattering contacts and a failed coil are frequent causes of a no-cool / no-start service call. Installing the correct OEM contactor restores reliable switching and prevents the compressor from being starved or damaged.

Specifications

Spec	Value
Part Number	1178074
Type	Definite-Purpose Contactor, 2-Pole
Brand	ICP (Tempstar / Heil / Comfortmaker)
Contact Rating	30A
Coil Voltage	24V
Poles	2
Fits System	RHS048L0BA0AAAA (4 Ton)
Fit	OEM Replacement

Compatibility

Designed for the ICP RHS048L0BA0AAAA heat pump and the matching RHS048 builds branded Tempstar, Heil, and Comfortmaker. Confirm the amp rating, pole count, and 24V coil against your existing contactor before installing.

Installation Guide

Safety First — Disconnect power at the breaker and disconnect, then verify zero voltage with a multimeter.
Access — Remove the service panel and locate the contactor in the control box.
Document — Photograph the line, load, and 24V coil wiring before disconnecting.
Remove — Transfer wires one at a time or label them, then unscrew the old contactor from its mounting.
Install — Mount the new contactor and reconnect every lead, including both 24V coil leads, to match your photos.
Test — Restore power, call for cooling, and verify the contactor pulls in cleanly and the compressor and fan energize.

Signs You Need a Replacement

Buzzing or chattering contactor that will not seat
Pitted, burned, or welded contacts
Compressor and fan will not energize on a cooling call
Open or shorted 24V coil that no longer pulls in

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 RHS...

$32.00

Frequently Asked Questions

Does this Contactor fit my ICP RHS048L0BA0AAAA — 24V Coil OEM 1178074 | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RHS048L0BA0AAAA — 24V Coil OEM 1178074 | 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 RHS048L0BA0AAAA — 24V Coil OEM 1178074 | 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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