What amp contactor do I need for my ICP system?

The correct replacement for ICP model RHS048H0BA0AAAA — 30A 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 RHS048H0BA0AAAA — 30A 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 Contactor for RHS048H0BA0AAAA — 30A 24V Coil | Ships Today

Name: ICP 2-Pole Contactor for RHS048H0BA0AAAA — 30A 24V Coil | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 29.95 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This OEM definite purpose contactor (part 1178074) is the main switching relay for the ICP / Tempstar / Heil RHS048H0BA0AAAA heat pump. The contactor is a 2-pole, 30-amp device with a 24-volt coil that the thermostat energizes to close the line-voltage contacts feeding the compressor and condenser fan motor. Over thousands of cycles the contacts pit, arc, and burn, while the coil can weaken. A failing contactor causes the outdoor unit to buzz, chatter, weld shut and run continuously, or fail to start at all. Replacing it is one of the most common outdoor-unit repairs.

Specifications

Spec	Value
Part Number	1178074
Type	Definite Purpose Contactor, 2-Pole
Brand	ICP / Tempstar / Heil
Contact Rating	30 A
Coil Voltage	24 VAC
Poles	2
Fit	OEM Replacement

Compatibility

Direct factory replacement for the ICP RHS048H0BA0AAAA 4-ton heat pump and equivalent Tempstar, Heil, and Comfortmaker condensing units using the 1178074 OEM number. Confirm pole count, amp rating, and 24V coil voltage against your existing contactor before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.
Access — Remove the condenser service panel to reach the electrical compartment.
Document — Photograph all 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 bracket.
Install — Mount the new contactor and reconnect each lead to the matching terminal per your photo.
Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly and the unit runs.

Signs You Need a Replacement

Outdoor unit buzzes or chatters but won't start.
Contacts are pitted, blackened, or welded together.
Unit runs nonstop or fails to shut off.
Coil is open or won't pull the contacts in on a 24V call.

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 Contactor for RHS048H...

$29.95

Frequently Asked Questions

Does this Contactor fit my ICP RHS048H0BA0AAAA — 30A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RHS048H0BA0AAAA — 30A 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 RHS048H0BA0AAAA — 30A 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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