What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPH4304000RKB1 — 24V Coil with Shunt | 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 WPH4304000RKB1 — 24V Coil with Shunt | 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 1-Pole 30A Contactor for WPH4304000RKB1 — 24V Coil with Shunt | Ships Today

Name: ICP 1-Pole 30A Contactor for WPH4304000RKB1 — 24V Coil with Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 41.60 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This OEM single-pole definite purpose contactor (part number 1172472) is the switching relay that energizes the compressor and condenser fan in your ICP/Tempstar/Heil WPH4304000RKB1 heat pump. When the 24-volt control circuit calls for cooling or heating, the 24V coil pulls the contacts closed, sending line voltage to the outdoor unit. This unit is rated for 30 amps and includes a factory shunt for reliable single-pole switching. Failed contactors are one of the most common no-cool/no-heat service calls — symptoms include a unit that hums but won't start, chattering or buzzing at the contactor, pitted or welded contacts, or an outdoor unit that runs continuously because the contacts have fused shut.

Specifications

Spec	Value
Part Number	1172472
Type	Definite Purpose Contactor, Single Pole
Brand	ICP (Tempstar / Heil)
Poles	1
Contact Rating	30 Amps
Coil Voltage	24V
Features	Includes Shunt

Compatibility

Direct OEM fit for the ICP/Tempstar/Heil WPH4304000RKB1 heat pump condensing unit. Also compatible with many ICP-family outdoor units using a 30A single-pole 24V contactor. Always verify the amp rating, pole count, and 24V coil against the part you are replacing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter across the line terminals.
Access — Remove the condensing unit service panel.
Document — Photograph all wires at the contactor before disconnecting.
Remove — Note line, load, and 24V coil terminal positions, then transfer wires one at a time and unbolt the old contactor from the bracket.
Install — Mount the new contactor, reconnect each wire to the matching terminal per your photo.
Test — Restore power, call for cooling, and confirm the contacts pull in cleanly and the compressor/fan start.

Signs You Need a Replacement

Outdoor unit hums or buzzes but the compressor won't start
Visible pitting, burning, or melted plastic on the contactor
Contacts stuck closed — unit runs even with thermostat off
Chattering relay or intermittent cooling

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 1-Pole 30A Contactor for WPH...

$41.60

Frequently Asked Questions

Does this Contactor fit my ICP WPH4304000RKB1 — 24V Coil with Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPH4304000RKB1 — 24V Coil with Shunt | 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 WPH4304000RKB1 — 24V Coil with Shunt | 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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