What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPH4424000RKA1 — 1-Pole 30A 24V w/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 WPH4424000RKA1 — 1-Pole 30A 24V w/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 Contactor for WPH4424000RKA1 — 1-Pole 30A 24V w/Shunt | Ships Today

Name: ICP Contactor for WPH4424000RKA1 — 1-Pole 30A 24V w/Shunt | Ships Today
Brand: ICP
SKU: WPH4424000RKA1
Price: 33.80 USD
Availability: InStock

SKU: WPH4424000RKA1 Brand: ICP

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Overview

This is a genuine OEM single-pole definite-purpose contactor (OEM part number 1172472) for the ICP / Tempstar / Heil WPH4424000RKA1 heat pump. The contactor is the electromechanical switch that energizes your compressor and condenser fan motor whenever the thermostat calls for cooling or heating. When the 24-volt control coil receives a signal, the magnetic field pulls the contacts closed and sends line voltage to the outdoor unit. This unit is rated at 30 amps with a 24V coil and includes an integrated shunt for reliable single-pole switching. Worn, pitted, or chattering contacts are one of the most common causes of an outdoor unit that hums but won't start, so a fresh OEM contactor is a fast, inexpensive fix.

Specifications

Spec	Value
OEM Part Number	1172472
Type	Definite Purpose Contactor
Brand	ICP / Tempstar / Heil
Poles	1 (Single-Pole)
Current Rating	30 Amps
Coil Voltage	24V
Feature	Integrated Shunt

Compatibility

Engineered as a direct factory replacement for the ICP / Tempstar / Heil WPH4424000RKA1 heat pump. This contactor also fits many other ICP-family condensing units and heat pumps that originally shipped with a single-pole 30A/24V contactor. Always match the pole count, amperage, and coil voltage to the part you are replacing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter before touching any wiring.
Access — Remove the electrical service panel on the condensing unit.
Document — Photograph all line and low-voltage wires before disconnecting anything.
Remove — Label and disconnect the leads, release the mounting screws, and lift out the old contactor.
Install — Mount the new contactor and reconnect each wire exactly per your photo, confirming the 24V coil terminals are correct.
Test — Restore power and confirm the contacts pull in cleanly and the compressor and fan start on a cooling call.

Signs You Need a Replacement

Outdoor unit hums or buzzes but the compressor/fan will not start.
Visible pitting, burning, or melted plastic on the contact points.
Contactor chatters rapidly or fails to pull in consistently.
Ants, debris, or stuck contacts keeping the unit running after the call ends.

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day returns on unused parts. 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 Contactor for WPH4424000RKA1...

$33.80

Frequently Asked Questions

Does this Contactor fit my ICP WPH4424000RKA1 — 1-Pole 30A 24V w/Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPH4424000RKA1 — 1-Pole 30A 24V w/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 WPH4424000RKA1 — 1-Pole 30A 24V w/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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