What amp contactor do I need for my ICP system?

The correct replacement for ICP model RHH048S0BA0AAAA — 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 RHH048S0BA0AAAA — 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 30A Contactor for RHH048S0BA0AAAA — 24V Coil | Ships Today

Name: ICP 2-Pole 30A Contactor for RHH048S0BA0AAAA — 24V Coil | Ships Today
Brand: ICP
SKU: 1178074-GEN
Price: 24.95 USD
Availability: InStock

SKU: 1178074-GEN Brand: ICP

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Overview

This genuine OEM 2-pole definite purpose contactor (part number 1178074) is the primary switching relay for the ICP/Heil/Tempstar RHH048S0BA0AAAA heat pump condensing unit. Rated at 30 amps per pole with a 24-volt control coil, it energizes the compressor and condenser fan motor whenever the thermostat calls for cooling or heating. The contactor is one of the most common failure points in any outdoor unit: its silver contacts pit and burn over thousands of switching cycles, and the coil can fail open from age and heat. Typical symptoms include a unit that hums but won't start, a chattering or buzzing contactor, welded contacts that keep the compressor running continuously, or no 24V pull-in at all.

Specifications

Spec	Value
Part Number	1178074
Type	Definite Purpose Contactor
Brand	ICP (Heil / Tempstar)
Poles	2-Pole
Rating	30 Amps
Coil Voltage	24V
Fits Model	RHH048S0BA0AAAA

Compatibility

Engineered as a direct OEM replacement for the ICP/Heil/Tempstar RHH048S0BA0AAAA heat pump. The 2-pole, 30A, 24V configuration is also a common service replacement across many 2–4 ton residential outdoor units built on the same platform. Always confirm pole count, amp rating, and coil voltage against the part you are removing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter at the contactor line terminals.
Access — Remove the condenser unit's electrical service panel.
Document — Photograph all line, load, and 24V coil wires before disconnecting anything.
Remove — Label and disconnect the line, load, and coil leads, then unscrew the old contactor from the bracket.
Install — Mount the new contactor, transfer each wire to the matching terminal per your photo, and torque connections snug.
Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly and the compressor and fan energize.

Signs You Need a Replacement

Loud buzzing, humming, or chattering from the outdoor unit
Compressor won't start even though the thermostat is calling
Pitted, blackened, 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 Contactor for RHH...

$24.95

Frequently Asked Questions

Does this Contactor fit my ICP RHH048S0BA0AAAA — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RHH048S0BA0AAAA — 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 RHH048S0BA0AAAA — 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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