What amp contactor do I need for my ICP system?

The correct replacement for ICP model RHH072H0BA0AAAA — 30A/40A 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 RHH072H0BA0AAAA — 30A/40A 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 RHH072H0BA0AAAA — 30A/40A 24V Coil | Ships Today

Name: ICP 2-Pole Contactor for RHH072H0BA0AAAA — 30A/40A 24V Coil | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 34.95 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This OEM 2-pole definite-purpose contactor is the electrical switch that energizes the compressor and condenser fan motor in your ICP RHH072H0BA0AAAA heat pump. When the thermostat calls for cooling or heating, the 24-volt control circuit pulls in the contactor coil, closing the line-voltage contacts and sending power to the outdoor unit. Available in 30-amp (OEM 1178074) and 40-amp (OEM 1178211) ratings, both with a 24V coil, this contactor handles the high inrush current of compressor startup. Worn, pitted, or chattering contacts are one of the most common reasons an outdoor unit won't start, runs intermittently, or hums without engaging.

Specifications

Spec	Value
Part Numbers	1178074 (30A), 1178211 (40A)
Type	Definite-purpose contactor
Brand	ICP / Heil / Tempstar
Poles	2-Pole
Contact Rating	30A / 40A
Coil Voltage	24V
Fits Model	RHH072H0BA0AAAA

Compatibility

Engineered as a direct OEM replacement for the ICP / Heil / Tempstar / Comfortmaker RHH072H0BA0AAAA heat pump. The 30A and 40A variants are interchangeable for this application; match the amp rating to the contactor currently installed or step up to 40A for added margin. Always confirm the coil is 24V before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage at the contactor terminals with a multimeter.
Access — Remove the service/control panel on the condensing unit.
Document — Photograph every wire and terminal position before disconnecting anything.
Remove — Label and disconnect the line, load, and 24V coil leads, then unscrew the old contactor from the base.
Install — Mount the new contactor, reconnect each wire to its matching terminal per your photo, and confirm the coil leads land on the 24V terminals.
Test — Restore power, call for cooling, and verify the contactor pulls in cleanly and the compressor and fan start.

Signs You Need a Replacement

Outdoor unit hums or buzzes but the compressor/fan won't start
Visibly burned, pitted, or welded contacts
Chattering or rapid clicking when the system calls
Intermittent cooling or a unit that needs the contactor tapped to start

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 Contactor for RHH072H...

$34.95

Frequently Asked Questions

Does this Contactor fit my ICP RHH072H0BA0AAAA — 30A/40A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RHH072H0BA0AAAA — 30A/40A 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 RHH072H0BA0AAAA — 30A/40A 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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