What amp contactor do I need for my ICP system?

The correct replacement for ICP model RHH120H0AA0AAAA — 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 RHH120H0AA0AAAA — 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 RHH120H0AA0AAAA — 30A/40A 24V Coil | Ships Today

Name: ICP 2-Pole Contactor for RHH120H0AA0AAAA — 30A/40A 24V Coil | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 29.00 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This is the OEM 2-pole definite purpose contactor for the ICP Tempstar Heil RHH120H0AA0AAAA heat pump, available as a 30A unit (1178074) or 40A unit (1178211), both with a 24V coil. The contactor is the high-current switch that powers the compressor and outdoor fan motor whenever the 24V control circuit energizes its coil. Over time the contacts pit, burn, or weld, and the coil can fail open — leaving the outdoor unit dead even though the thermostat is calling, or in some cases preventing it from shutting off. A buzzing contactor, chattering pull-in, or visibly burned contacts are classic replacement signals. Use the amperage rating that matches your original.

Specifications

Spec	Value
Part Numbers	1178074 (30A), 1178211 (40A)
Type	Definite Purpose Contactor
Poles	2-Pole
Coil Voltage	24V
Current Rating	30A or 40A
Brand	ICP (Tempstar / Heil)
Fits Model	RHH120H0AA0AAAA

Compatibility

Direct OEM fit for the ICP RHH120H0AA0AAAA heat pump and equivalent Tempstar, Heil, and Comfortmaker condensing units. Choose 1178074 for a 30A original or 1178211 for a 40A original — match the rating stamped on your existing contactor.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.
Access — Remove the electrical service panel on the condensing unit.
Document — Photograph every line, load, and 24V coil wire before disconnecting.
Remove — Transfer wires one at a time or label them, unscrew the old contactor, and lift it out.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test — Restore power, place a cooling/heating call, and confirm clean pull-in with no buzzing.

Signs You Need a Replacement

Outdoor unit won't start despite a valid thermostat call
Loud buzzing or chattering from the contactor
Pitted, burned, or welded contacts
Open 24V coil or contacts that won't pull 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 Contactor for RHH120H...

$29.00

Frequently Asked Questions

Does this Contactor fit my ICP RHH120H0AA0AAAA — 30A/40A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RHH120H0AA0AAAA — 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 RHH120H0AA0AAAA — 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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