What amp contactor do I need for my ICP system?

The correct replacement for ICP model RHH102L0BA0AAAA — OEM Part 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 RHH102L0BA0AAAA — OEM Part 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 24V Contactor for RHH102L0BA0AAAA — OEM Part 1178074 | Ships Today

Name: ICP 2-Pole 30A 24V Contactor for RHH102L0BA0AAAA — OEM Part 1178074 | Ships Today
Brand: ICP
SKU: 1178074
Price: 42.84 USD
Availability: InStock

SKU: 1178074 Brand: ICP

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Overview

The ICP OEM 2-Pole 30A 24V Contactor (part number 1178074) is the electrical switch that powers the compressor and outdoor fan motor in your RHH102L0BA0AAAA condensing unit. When the thermostat calls for cooling, the 24-volt coil pulls in the contactor, closing both poles to deliver line voltage to the compressor. Over time the contacts pit, corrode, or weld from arcing, causing the unit to chatter, fail to start, or run continuously. This genuine OEM 30-amp, two-pole contactor restores clean, reliable switching and protects the compressor from low-voltage and chattering damage.

Specifications

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

Compatibility

This contactor is the genuine OEM replacement for the ICP / Tempstar / Heil model RHH102L0BA0AAAA. It fits matching ICP-built condensing units across the Heil, Tempstar, Comfortmaker, and Arcoaire families that use part 1178074. Confirm the part number, pole count, and coil voltage on your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the outdoor unit's electrical access panel.
Document — Photograph every line, load, and 24V coil wire before disconnecting.
Remove — Transfer wires one at a time or label them, then unscrew the old contactor from its mount.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photos.
Test — Restore power and confirm the contactor pulls in cleanly with no chatter on a cooling call.

Signs You Need a Replacement

Humming or chattering from the contactor when the unit tries to start
Compressor and fan won't start on a cooling call
Pitted, burned, or welded contacts visible on inspection
Unit runs continuously and won't shut off (stuck contacts)

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 24V Contactor for...

$42.84

Frequently Asked Questions

Does this Contactor fit my ICP RHH102L0BA0AAAA — OEM Part 1178074 | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RHH102L0BA0AAAA — OEM Part 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 RHH102L0BA0AAAA — OEM Part 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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