What amp contactor do I need for my ICP system?

The correct replacement for ICP model RH5420423 — 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 RH5420423 — 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 3-Pole 35A Contactor for RH5420423 — 24V Coil | Ships Today

Name: ICP 3-Pole 35A Contactor for RH5420423 — 24V Coil | Ships Today
Brand: ICP
SKU: 1280465-GEN
Price: 34.95 USD
Availability: InStock

SKU: 1280465-GEN Brand: ICP

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Overview

This genuine OEM 3-pole definite-purpose contactor (Part #1280465) fits ICP, Heil, and Tempstar condensing units, including model RH5420423. The contactor is the electrically operated switch that powers the compressor and condenser fan motor when the thermostat calls for cooling. Energizing its 24-volt coil closes three sets of 35-amp contacts to feed line voltage to the outdoor unit. Three-pole contactors switch all power legs simultaneously and are used on three-phase or higher-capacity equipment. Pitted, burned, or welded contacts and an open or chattering coil are among the most common causes of no-cooling and compressor-won't-start calls.

Specifications

Spec	Value
Part Number	1280465
Type	Definite-Purpose Contactor
Brand	ICP / Heil / Tempstar
Poles	3-Pole
Contact Rating	35 Amps
Coil Voltage	24V

Compatibility

Directly fits ICP/Heil/Tempstar model RH5420423 and related ICP-family condensing units and heat pumps using a 3-pole, 35A, 24V-coil contactor. Confirm the existing part number, pole count, and footprint before ordering.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the condensing unit service panel.
Document — Photograph all wire connections before disconnecting anything.
Remove — Transfer line, load, and 24V coil leads one at a time and unbolt the old contactor from its bracket.
Install — Mount the new contactor and reconnect all line, load, and coil wires per your photo.
Test — Restore power, call for cooling, and verify the contactor pulls in and the unit starts.

Signs You Need a Replacement

Outdoor unit won't start or only hums
Burned, pitted, or welded contacts
Loud chattering or buzzing
Unit won't shut off due to stuck-closed 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 3-Pole 35A Contactor for RH5...

$34.95

Frequently Asked Questions

Does this Contactor fit my ICP RH5420423 — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP RH5420423 — 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 RH5420423 — 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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